Undercarriage and vehicle

Abstract

This application relates to the field of vehicle equipment technology, and discloses a lower body and a vehicle. The lower body includes: a battery mechanism, including a housing and a battery body, the battery body being disposed within the housing; and a front compartment mechanism, including a mounting structure and a mounting beam, the mounting structure having a mounting surface, the mounting beam being adjustablely disposed at any position on the mounting surface along a first direction, the mounting beam being used to connect to the housing; the first direction is the length direction of the vehicle body. The front compartment mechanism of the lower body provided by this application can adapt to battery mechanisms of various lengths, improving the compatibility between the front compartment mechanism and the battery.

Description

Technical Field

[0001] This application relates to the field of vehicle equipment technology, and more particularly to a vehicle body and a vehicle. Background Technology

[0002] For new energy vehicles, the lower body is one of the important components. The lower body generally includes the front compartment mechanism, the rear floor assembly, the sill beams, and the battery mechanism. The battery mechanism can be connected to the sill beams on both sides of the vehicle in the width direction. The battery mechanism can also be connected to the front compartment mechanism located near the front of the vehicle in the length direction, and to the rear floor assembly near the rear of the vehicle, to improve the connection and installation stability of the battery mechanism.

[0003] However, the front compartment mechanism in the aforementioned related technologies cannot be adapted to battery mechanisms of different lengths, affecting the compatibility between the front compartment mechanism and the battery mechanism. Utility Model Content

[0004] In view of this, the present application provides a lower body and a vehicle to solve the technical problem in the above-mentioned related technologies that the front compartment mechanism cannot adapt to battery mechanisms of different lengths and sizes, thus affecting the compatibility between the front compartment mechanism and the battery mechanism.

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

[0006] A first aspect of this application provides a vehicle body, comprising:

[0007] A battery assembly includes a housing and a battery body, wherein the battery body is disposed within the housing;

[0008] The forward cabin mechanism includes a mounting structure and a mounting beam. The mounting structure has a mounting surface, and the mounting beam is adjustablely positioned at any position along a first direction on the mounting surface. The mounting beam is used to connect to the shell.

[0009] The first direction is the length direction of the vehicle body.

[0010] This application provides a lower body that solves the problem of traditional lower body front compartment mechanisms being unable to adapt to batteries with different wheelbases and lengths through an adjustable connection between the mounting beam and the mounting structure. Specifically, the adjustability of the mounting beam allows the front compartment mechanism to flexibly respond to dimensional changes in the battery structure along the length of the vehicle body, thereby improving the connection flexibility between the front compartment mechanism and the battery structure and enhancing the adaptability to batteries of different lengths. Furthermore, this design avoids redesign or modification problems caused by changes in battery size, providing greater versatility and scalability for vehicle development.

[0011] In some embodiments of this application, a connector is also included, through which the housing is detachably connected to the mounting beam.

[0012] In some embodiments of this application, the mounting beam has a mounting portion facing the housing, and the mounting beam has a groove on its surface facing the mounting surface. The groove is correspondingly provided with the mounting portion, and both the mounting portion and the groove extend along the length direction of the mounting beam.

[0013] The groove forms a space with the mounting surface, and the connector passes through the mounting part and connects the housing to the mounting beam.

[0014] In some embodiments of this application, the battery mechanism further includes a connection structure;

[0015] The connecting structure is disposed on the housing and is used for detachable connection with the mounting beam via the connector.

[0016] In some embodiments of this application, the connection structure is disposed on the side of the housing along the first direction.

[0017] In some embodiments of this application, a sealing structure is also included;

[0018] The sealing structure is disposed between the surface of the housing facing the mounting surface and the mounting surface, and the sealing structure is used to seal the joint between the housing and the mounting surface.

[0019] In some embodiments of this application, the sealing structure is located on the side of the mounting beam near the housing.

[0020] In some embodiments of this application, the sealing structure is a sealing strip that extends along a second direction, which is perpendicular to the first direction and is the width direction of the vehicle body.

[0021] In some embodiments of this application, the mounting structure is a one-piece cast structure.

[0022] A second aspect of this application provides a vehicle including a vehicle body and a lower body as described above. Attached Figure Description

[0023] Figure 1 This application provides a schematic diagram of the connection between the battery mechanism and the front compartment mechanism of the vehicle body.

[0024] Figure 2 This is a structural schematic diagram of a front cabin mechanism provided in an embodiment of this application.

[0025] Figure label:

[0026] 100. Battery mechanism;

[0027] 110. Casing; 120. Battery body; 130. Connection structure;

[0028] 200. Front cabin mechanism;

[0029] 210. Installation structure; 220. Installation beam;

[0030] 211. Mounting surface; 221. Mounting part; 222. Groove;

[0031] 300. Connectors;

[0032] 400. Sealed structure. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The aforementioned front compartment mechanism cannot accommodate battery structures of different lengths, affecting the compatibility between the two. This problem arises because the battery structure and front compartment mechanism use a fixed connection, with an adjustable mounting position, making it difficult for the same vehicle platform to accommodate multiple battery length specifications. This rigid connection structure often requires redesigning mounting components when facing changes in battery size, leading to extended development cycles and increased costs. Furthermore, the insufficient flatness of the mounting surface in traditional sheet metal welding structures affects the sealing performance between the battery and the vehicle body, and provides limited protection for the battery in a collision. In existing technical solutions, the fixed connection between the battery mounting beam and the mounting structure cannot meet the rapid expansion needs of vehicles with different wheelbases, nor can it achieve universal application of pure electric and range-extended powertrain systems, severely restricting product iteration efficiency.

[0040] To address the aforementioned issues, this application provides a lower body and vehicle that solves the problem of traditional lower body front compartment mechanisms being unable to adapt to batteries with different wheelbases and lengths through an adjustable connection between the mounting beam and the mounting structure. Specifically, the adjustability of the mounting beam allows the front compartment mechanism to flexibly respond to dimensional changes in the battery mechanism along the vehicle body's length, thereby improving the connection flexibility between the front compartment mechanism and the battery mechanism and enhancing its adaptability to batteries of different lengths. Furthermore, this design avoids redesign or modification issues caused by changes in battery size, providing greater versatility and scalability for vehicle development.

[0041] The undercarriage and vehicle provided in this application will now be described with reference to the accompanying drawings and specific embodiments.

[0042] Reference Figure 1 and Figure 2This application provides a vehicle body, which may include a battery mechanism 100 and a front compartment mechanism 200.

[0043] The battery mechanism 100 may include a housing 110 and a battery body 120, with the battery body 120 disposed within the housing 110. The front compartment mechanism 200 may include a mounting structure 210 and a mounting beam 220. The mounting structure 210 has a mounting surface 211, and the mounting beam 220 is adjustablely disposed on the mounting surface 211 along a first direction (e.g., Figure 2 At any position in the X direction, the mounting beam 220 is used to connect to the housing 110. The first direction is the length direction of the vehicle body.

[0044] The battery mechanism 100 can be understood as a component used to house and protect the battery body 120, and its main function is to provide physical support and protection. Specifically, the housing 110 can be made of metal, composite materials, or engineering plastics to meet different strength and weight requirements. For example, when the housing 110 is made of aluminum alloy, it can achieve high structural strength while reducing the overall weight; while when engineering plastics are used, manufacturing costs can be further reduced while ensuring a certain level of strength.

[0045] The mounting surface 211 of the mounting structure 210 can be a reference plane for supporting and positioning the mounting beam 220, which can be formed by machining, casting or other forming processes. In practical applications, the mounting surface 211 can be a planar structure, a sliding structure with guide rails, or a segmented structure with multiple preset fixing points, so as to provide basic support for the adjustment of the mounting beam 220.

[0046] Regarding the adjustable configuration of the mounting beam 220, it can be understood as achieving positional changes along a first direction through some kind of adjustment mechanism. For example, the mounting beam 220 can be fixed by bolt connection with a long strip-shaped sliding groove, thereby allowing its position to be freely adjusted within the groove range. The main purpose of this design is to accommodate battery mechanisms 100 of different lengths.

[0047] In other embodiments, the adjustable setting of the mounting beam 220 can be understood as adjusting the position of the mounting beam 220 on the mounting surface 211 along the first direction before connecting the battery mechanism 100 to the mounting structure 210, so that the housing 110 of the battery mechanism 100 and the mounting structure 210 are matched in position. After the position is matched, the mounting beam 220 can be welded to the mounting surface 211 of the mounting structure 210 by welding.

[0048] In some embodiments, the mounting beam 220 may be made of hot-formed steel, thereby improving the structural strength and stiffness of the mounting beam 220, as well as its resistance to bending.

[0049] The battery assembly 100 consists of a housing 110 and a battery body 120, with the battery body 120 housed inside the housing 110 to form a complete battery support unit. The front compartment assembly 200 includes a mounting structure 210 and a mounting beam 220. The mounting structure 210 has a flat mounting surface 211, providing a reference positioning plane for the mounting beam 220. The mounting beam 220 is designed to be adjustable, allowing it to be fixed at any position along a first direction on the mounting surface 211, i.e., the length direction of the vehicle body. This adjustability allows the mounting beam 220 to flexibly adjust its connection position according to the actual length dimensions of the battery assembly 100.

[0050] When the dimensions of the battery assembly 100 change along the length of the vehicle body, such as with a shorter or longer battery configuration, the mounting beam 220 can be moved accordingly towards the rear or front of the vehicle body to ensure a suitable connection with the battery housing 110. In this way, the front compartment assembly 200 achieves compatible installation of batteries of different lengths. Furthermore, the direct connection between the mounting beam 220 and the housing 110 forms a stable structural connection between the front compartment assembly 200 and the battery assembly 100.

[0051] This application provides a lower body that solves the problem of traditional lower body front compartment mechanisms being unable to adapt to batteries with different wheelbases and lengths through an adjustable connection between the mounting beam 220 and the mounting structure 210. Specifically, the adjustability of the mounting beam 220 allows the front compartment mechanism 200 to flexibly respond to dimensional changes in the battery mechanism 100 along the length of the vehicle body, thereby improving the connection flexibility between the front compartment mechanism 200 and the battery mechanism 100 and enhancing the adaptability to batteries of different lengths. Furthermore, this design avoids redesign or modification problems caused by changes in battery size, providing greater versatility and scalability for vehicle development.

[0052] Reference Figure 1 and Figure 2 In some embodiments, the undercarriage may also include a connector 300, and the housing 110 is detachably connected to the mounting beam 220 via the connector 300.

[0053] Specifically, the connector 300 can be an intermediate medium for achieving a detachable connection between two components, and it can be implemented using common mechanical connection structures 130 such as bolts, clips, or pins. The purpose of introducing the connector 300 is to provide a convenient separation method, so that the fixed relationship between the housing 110 and the mounting beam 220 can be quickly released as needed, thereby simplifying the installation and disassembly operations of the battery mechanism 100.

[0054] This technical solution introduces a connector 300 as an intermediate connection medium between the housing 110 and the mounting beam 220, enabling a detachable mechanical connection between the two. This design plays a crucial role in solving the problem of the original fixed connection structure 130 being difficult to separate quickly: the presence of the connector 300 allows the housing 110 and the mounting beam 220 to be quickly separated when needed by releasing the constraint of the connector 300, without damaging the mounting beam 220 or the main structure of the housing 110. This detachable feature not only simplifies the installation process of the battery mechanism 100 but also provides operational convenience for subsequent maintenance or replacement of battery mechanisms 100 of different specifications, while maintaining the stability and reliability of the connection between the mounting beam 220 and the housing 110. The standardized design of the connector 300 further reduces the assembly difficulty, making the adaptation and installation of battery mechanisms 100 of different sizes more efficient.

[0055] Reference Figure 1 and Figure 2 In some embodiments, the mounting beam 220 has a mounting portion 221 facing the housing 110. The surface of the mounting beam 220 facing the mounting surface 211 has a groove 222, which corresponds to the mounting portion 221. Both the mounting portion 221 and the groove 222 extend along the length of the mounting beam 220. The groove 222 and the mounting surface 211 form a space between them. The connector 300 passes through the mounting portion 221 and connects the housing 110 to the mounting beam 220.

[0056] Specifically, the mounting part 221 can be a functional area on the mounting beam 220 for cooperating with the connector 300 to achieve the connection of the housing 110. It can be a raised structure or a locally thickened area on the surface of the mounting beam 220, with the purpose of providing a stable stress point for the connector 300.

[0057] The groove 222 can be understood as a groove structure with a certain depth and width opened on the surface of the mounting beam 220. It can be formed by machining, integral casting, or stamping, etc., and its purpose is to provide clearance space for the connector 300 and prevent it from penetrating the mounting surface 211. In practical applications, the gap space can be a cavity area formed by the vertical distance between the groove 222 and the mounting surface 211. Its size can be changed by adjusting the depth of the groove 222, thereby accommodating connectors 300 of different specifications.

[0058] This design, through the coordinated design of the mounting section 221 and the groove 222, creates a redundant space between the mounting beam 220 and the mounting surface 211 specifically for the connector 300 to pass through. The mounting section 221, acting as the load-bearing carrier for the connector 300, ensures that the connector 300 can directly act on the connecting structure 130 of the housing 110 by facing the housing 110. The groove 222, by maintaining a gap with the mounting surface 211, avoids the risk of the connector 300 directly contacting the mounting surface 211 and provides axial clearance for the connector 300. The extension of both along the length of the mounting beam 220 not only ensures the stability of the connecting structure 130 under dynamic loads but also enhances the connection strength through a linearly distributed load-bearing surface. When the connector 300 passes through the mounting part 221, the existence of the gap allows the head or threaded section of the connector 300 to be fully accommodated in the groove 222, keeping the mounting surface 211 in a completely flat state. This maintains the structural strength of the mounting structure 210 and avoids the problem of reduced sealing performance caused by the opening.

[0059] Reference Figure 1 and Figure 2 In some embodiments, the battery mechanism 100 may further include a connecting structure 130 disposed on the housing 110, the connecting structure 130 being detachably connected to the mounting beam 220 via a connector 300.

[0060] The connecting structure 130 is an interface component specifically designed to achieve a compatible connection between the housing 110 and the mounting beam 220. It can be implemented using structures such as bosses, grooves 222, or threaded holes with pre-positioning functions. The geometry of the connecting structure 130 can be designed to match the mounting portion 221 of the mounting beam 220, aiming to provide a standardized positioning reference and reduce reliance on positioning accuracy during assembly. Furthermore, the connecting structure 130 can improve the load transfer efficiency between the housing 110 and the mounting beam 220 through localized reinforcement design, avoiding stress concentration problems caused by direct connection.

[0061] This technical solution solves the assembly compatibility problem when the housing 110 and the mounting beam 220 are directly connected by adding a dedicated connecting structure 130 to the housing 110, forming an adaptable interface for the mounting beam 220 connector 300. Specifically, the connecting structure 130 provides a standardized positioning reference for the connector 300, and its geometry spatially matches the mounting portion 221 of the mounting beam 220, allowing the connector 300 to accurately penetrate the mounting portion 221 along a preset path and anchor to the housing 110. This design not only eliminates the accumulation of installation errors through structural pre-positioning but also improves the load transfer efficiency between the housing 110 and the mounting beam 220 through the local reinforcement of the connecting structure 130.

[0062] The way the connecting structure 130 and the connector 300 are matched changes the traditional rigid contact mode between the housing 110 and the mounting beam 220. The connection stress is distributed to a specific area of ​​the connecting structure 130, avoiding deformation or fatigue damage to the housing 110 body due to direct bearing of the fastening force of the connector 300. This enhances the overall durability of the connection while ensuring the detachable function.

[0063] Reference Figure 1 and Figure 2 In some embodiments, the connection structure 130 is disposed on the side of the housing 110 along a first direction.

[0064] This solution addresses the accessibility issue caused by top connections by placing the connecting structure 130 on the side of the housing 110 instead of the top. Firstly, when the mounting beam 220 needs to be adjusted in the first direction, the side connecting structure 130 remains in an open area on the side of the housing 110, facilitating the installation and removal of the connector 300 from the side of the vehicle. Secondly, it avoids potential sealing defects caused by top connections. The top connecting structure 130 needs to penetrate the mating area between the mounting surface 211 and the housing 110, while the side connecting structure 130 avoids the direct mating seam between the mounting surface 211 and the housing 110, allowing a continuous sealing contact surface to be formed between them. This prevents a decrease in sealing performance due to openings in the connecting structure 130. This optimized spatial layout balances assembly convenience and sealing reliability, ensuring that the battery mechanism 100 maintains a stable connection and sealing state when adapting to different wheelbases.

[0065] Reference Figure 1 and Figure 2 In some embodiments, the lower body may also include a sealing structure 400, which is disposed between the surface of the housing 110 facing the mounting surface 211 and the mounting surface 211. The sealing structure 400 is used to seal the mating point between the housing 110 and the mounting surface 211.

[0066] In some embodiments, the sealing structure 400 can be a component capable of filling and blocking the gap between the housing 110 and the mounting surface 211. It can be made of flexible materials such as rubber sealing strips, silicone gaskets, or polyurethane elastomers, with the aim of adapting to gap changes caused by adjustments in the position of the mounting beam 220 through its flexible filling and fitting characteristics. The surface of the housing 110 facing the mounting surface 211 can be the area where the housing 110 and the mounting surface 211 are in direct contact or opposite each other. Its flatness can be improved through machining or surface treatment to enhance the sealing effect. The mounting surface 211 can be a planar area on the mounting structure 210 used to support the mounting beam 220 and the housing 110; its surface is typically precision-machined to ensure a good fit with the sealing structure 400.

[0067] This solution introduces a sealing structure 400 to directly seal the mating area between the housing 110 and the mounting surface 211. The sealing structure 400, positioned between the contact surfaces, effectively fills the gap between the housing 110 and the mounting surface 211 caused by the adjustment of the mounting beam 220, thereby blocking the path of impurities or water penetration. This sealing method does not rely on additional external protective measures; instead, through a structural design that directly targets the weakest point in the seal, it ensures that the sealing performance between the housing 110 and the mounting surface 211 remains stable regardless of the position of the mounting beam 220 on the mounting surface 211, thus improving the overall environmental adaptability and reliability of the vehicle body. The presence of the sealing structure 400 eliminates the mutual constraint between the adjustability of the mounting beam 220 and the sealing requirements, ensuring the flexibility of the battery assembly 100 installation while avoiding potential safety hazards caused by seal failure.

[0068] Reference Figure 1 and Figure 2 In some embodiments, the sealing structure 400 is located on the side of the mounting beam 220 near the housing 110.

[0069] This technical solution achieves two technical effects by positioning the sealing structure 400 on the side of the mounting beam 220 closer to the housing 110, thus creating a spatially offset layout between the sealing structure 400 and the connection points of the mounting beam 220 and the housing 110. First, when the mounting beam 220 and the housing 110 are fixed by the connector 300, the insertion path of the connector 300 is physically isolated from the pressure-bearing area of ​​the sealing structure 400, preventing shear stress on the sealing structure 400 during the tightening process. Second, this layout provides a visual operating space for the installation of the connector 300, facilitating observation of the locking status by construction personnel and ensuring connection reliability. This positional optimization, without altering the material properties of the sealing structure 400, achieves dual protection of sealing performance and structural connection through spatial layout reconstruction.

[0070] Reference Figure 1 and Figure 2 In some embodiments, the sealing structure 400 is a sealing strip, and the sealing strip is along a second direction (e.g., Figure 2 The first direction extends in the Y direction, and the second direction is perpendicular to the first direction. The second direction is the width direction of the vehicle body.

[0071] The sealing strip can be a strip-shaped material with elasticity and sealing properties, and can be made of rubber, silicone, or other elastic materials. The design of the sealing strip extending in the second direction can cover the gap in the width direction between the housing 110 and the mounting surface 211. Its purpose is to achieve a reliable sealing effect through a simple structure, while avoiding interference with the adjustment function of the mounting beam 220 in the first direction.

[0072] This solution addresses the conflict between sealing performance and cost by employing a sealing strip as the sealing structure 400, utilizing its material properties and extension direction design. Specifically, the sealing strip, as a standardized elastic element, has a simple structure and requires no complex processing, directly reducing manufacturing costs; along the second direction (e.g. Figure 2 The layout extending in the Y direction allows the adhesive strip to cover the gap in the width direction between the housing 110 and the mounting surface 211, achieving a sealing effect through compression deformation, while avoiding the sealing structure 400 from being exposed to the gap in the first direction (e.g., in the Y direction). Figure 1 The interference of the adjustment function of the beam 220 installed on the X-direction. The elastic properties of the rubber strip can adapt to the slight deformation of different mounting surfaces 211, enhancing the reliability of the seal.

[0073] Reference Figure 1 and Figure 2 In some embodiments, the mounting structure 210 is a one-piece cast structure.

[0074] The mounting structure 210 is a core component used to support and connect the battery mechanism 100 and the front compartment mechanism 200. It can be made of materials such as aluminum alloy or high-strength steel through an integrated molding process. The integrated casting process can effectively avoid the weak points in strength caused by splicing and welds in the traditional sheet metal welding process, while ensuring that the mounting surface 211 has higher flatness and dimensional accuracy. Its purpose is to provide a highly reliable basic platform to meet the adaptation requirements of different wheelbases and battery specifications.

[0075] This solution employs a one-piece casting process to manufacture the mounting structure 210, thereby improving the overall structural strength and flatness. Traditional sheet metal welded structures suffer from weld seams and deformation risks due to the splicing of multiple components. The one-piece casting process eliminates structural weaknesses caused by welding, ensuring the mounting surface 211 remains a complete plane and providing a high-precision reference surface for the adjustable connection of the mounting beam 220. This process improvement directly solves the problem of loose connection caused by excessive clearance between the mounting beam 220 and the mounting surface 211, while also reducing the deformation that the sealing structure 400 needs to compensate for, ultimately achieving both high-strength connection and reliable sealing. Furthermore, the uniformity of the one-piece casting structure reduces the difficulty of adapting to different wheelbases and battery specifications, providing a foundation for subsequent modular development.

[0076] This application also provides a vehicle, which may include a vehicle body and the aforementioned undercarriage.

[0077] This technical solution integrates the lower body, which has an adjustable mounting structure 210, with the vehicle body to form a complete vehicle system. The lower body provides a high-precision mounting surface 211 through the integrally cast mounting structure 210, and, in conjunction with a mounting beam 220 that can move along the length of the vehicle body, allows the battery mechanism 100 to flexibly adjust its connection position according to its own length. This design enables the vehicle to be compatible with different wheelbase requirements, reducing development time and cycle.

[0078] In some embodiments, the vehicle may be a gasoline-powered vehicle, or it may be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range-extended electric vehicle (REEV), a hybrid electric vehicle (HEV), or a fuel cell electric vehicle. The vehicle may also be any vehicle equipped with a battery.

[0079] 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 vehicle body, characterized in that, include: The battery assembly (100) includes a housing (110) and a battery body (120), wherein the battery body (120) is disposed within the housing (110); The front cabin mechanism (200) includes a mounting structure (210) and a mounting beam (220), the mounting structure (210) having a mounting surface (211), the mounting beam (220) being adjustablely disposed at any position on the mounting surface (211) along a first direction, and the mounting beam (220) being used to connect to the shell (110); The first direction is the length direction of the vehicle body.

2. The undercarriage body according to claim 1, characterized in that, It also includes a connector (300), through which the housing (110) is detachably connected to the mounting beam (220).

3. The undercarriage body according to claim 2, characterized in that, The mounting beam (220) has a mounting portion (221) facing the housing (110), and the mounting beam (220) has a groove (222) on the surface facing the mounting surface (211). The groove (222) is provided corresponding to the mounting portion (221), and both the mounting portion (221) and the groove (222) extend along the length direction of the mounting beam (220). The groove (222) forms a space with the mounting surface (211), and the connector (300) passes through the mounting part (221) and connects the housing (110) to the mounting beam (220).

4. The undercarriage body according to claim 3, characterized in that, The battery mechanism (100) also includes a connecting structure (130); The connecting structure (130) is disposed on the housing (110), and the connecting structure (130) is used to be detachably connected to the mounting beam (220) via the connector (300).

5. The undercarriage body according to claim 4, characterized in that, The connection structure (130) is disposed on the side of the housing (110) along the first direction.

6. The undercarriage body according to claim 1, characterized in that, It also includes a sealing structure (400); The sealing structure (400) is disposed between the surface of the housing (110) facing the mounting surface (211) and the mounting surface (211), and the sealing structure (400) is used to seal the joint between the housing (110) and the mounting surface (211).

7. The undercarriage body according to claim 6, characterized in that, The sealing structure (400) is located on the side of the mounting beam (220) near the housing (110).

8. The undercarriage body according to claim 6, characterized in that, The sealing structure (400) is a sealing strip that extends along a second direction, which is perpendicular to the first direction and is the width direction of the vehicle body.

9. The undercarriage body according to claim 1, characterized in that, The mounting structure (210) is an integrally cast structure.

10. A vehicle, characterized in that, It includes the vehicle body and the undercarriage as described in any one of claims 1 to 9.

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