Chassis, vehicle body, vehicle body assembly method and vehicle

Abstract

A chassis (100), which is disposed in a vehicle (1). The chassis (100) comprises: a beam frame (10) for mounting a suspension; an energy compartment frame (20), wherein the beam frame (10) abuts against end portions of the energy compartment frame (20) in a first direction, and the first direction is the direction of height of the vehicle; and a connecting structure (30) configured to fixedly connect the energy compartment frame (20) to the beam frame (10) in the first direction. Further disclosed are a vehicle body, a vehicle body assembly method and a vehicle (1). An assembly clearance does not easily occur between the beam frame (10) and the energy compartment frame (20) of the chassis (100), thereby reducing the assembly difficulty of the chassis (100).

Description

Vehicle body, vehicle body, vehicle body assembly method and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 31, 2023, with application number 202311120781.3, and invention name "Vehicle body, vehicle body, vehicle body assembly method and vehicle", all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of vehicles, and in particular to a vehicle body, a vehicle body, a vehicle body assembly method, and a vehicle. Background Art

[0003] Energy conservation and emission reduction are the key to the sustainable development of the automotive industry. New energy vehicles have become an important part of the sustainable development of the automotive industry due to their energy-saving and environmental protection advantages.

[0004] At present, the lower body structure of new energy vehicles usually includes parts such as the body and batteries. However, during the assembly process of the body, it is easy to have assembly gaps between the parts, making the assembly of the body difficult.

[0005] Summary of the Invention

[0006] In view of this, the present application provides a vehicle body, a vehicle body, a vehicle body assembly method and a vehicle to solve the problem of assembly gaps easily existing between parts of the vehicle body.

[0007] An embodiment of the first aspect of the present application provides a vehicle body, provided in a vehicle, comprising:

[0008] beam frame, used to mount the suspension;

[0009] an energy cabin frame, wherein the beam abuts against an end of the energy cabin along a first direction, the first direction being a vehicle height direction;

[0010] The connecting structure is configured to fixedly connect the energy cabin frame and the beam frame along the first direction.

[0011] The vehicle body proposed in the embodiment of the present application includes a beam frame, an energy cabin frame and a connecting structure. The beam frame abuts against the end of the energy cabin frame along a first direction, and the connecting structure can fixedly connect the energy cabin frame and the beam frame along the first direction to assemble the vehicle body. Since the assembly direction of the beam frame and the energy cabin frame is the same as the connection direction of the connecting structure, it is not easy to generate an assembly gap between the beam frame and the energy cabin frame; since the first direction is the height direction of the vehicle, the beam frame falls on the upper part of the energy cabin frame along the first direction, so that the beam frame and the energy cabin frame can be abutted, and the assembly process is relatively simple. The above-mentioned vehicle body is not easy to generate an assembly gap, which improves the installation accuracy, reduces the difficulty of assembly, and solves the problem of difficulty in assembling the vehicle body due to the assembly gap.

[0012] In some embodiments, a positioning portion is provided on the end portion of the energy cabin frame along the second direction, and the beam abuts against the positioning portion along the first direction, and the second direction is the direction of vehicle travel;

[0013] The connection structure includes a first fastener, and the first fastener is penetrated through the beam frame and the positioning portion along the first direction.

[0014] By adopting the above technical solution, a positioning portion is provided at the end of the energy capsule frame, and the beam frame abuts the positioning portion along the first direction, thereby preventing an assembly gap from forming between the beam frame and the energy capsule frame. A first fastener is provided through the beam frame and the positioning portion along the first direction, thereby enabling the first fastener to assemble or disassemble the energy capsule frame and the beam frame along the first direction. The above vehicle body does not require fasteners extending along the width direction of the vehicle body, thus solving the problem of an assembly gap between the energy capsule frame and the beam frame easily forming in the width direction of the vehicle body.

[0015] In some embodiments, the beam is provided with a connecting portion extending along the second direction;

[0016] The connecting portion abuts against and fits the positioning portion along the first direction, and the first fastener penetrates the connecting portion and the positioning portion along the first direction.

[0017] By arranging a connecting portion extending along the second direction on the beam, it is convenient to overlap the connecting portion above the positioning portion, so that the beam abuts and fits against the positioning portion.

[0018] In some embodiments, the surfaces where the positioning portion and the connecting portion abut against each other are both planes.

[0019] By adopting the above technical solution, the positioning part and the connecting part can fit tightly, further reducing the probability of an assembly gap between the beam frame and the energy cabin frame.

[0020] In some embodiments, at least two connecting portions are provided on the beam, wherein the two connecting portions are spaced apart along a third direction, and the third direction is perpendicular to the first direction and the second direction;

[0021] At least two positioning parts are provided on the energy cabin frame, wherein the two positioning parts are spaced apart along the third direction, and the connecting part is connected to the positioning parts in a one-to-one correspondence.

[0022] By adopting the above technical solution, each connecting part can be connected to the corresponding positioning part along the first direction, thereby improving the connection strength between the beam frame and the energy cabin frame, and the vehicle body has better structural stability.

[0023] In some embodiments, the energy cabin frame includes a frame, a mounting plate provided in the frame, and a connecting block provided at a corner of the frame, wherein the mounting plate is used to connect a battery cell;

[0024] The corners of the frame and the connecting block together form the positioning portion, and at least one of the frame and the connecting block is provided with a first connecting hole for installing the first fastener.

[0025] By adopting the above technical solution, the energy cabin frame is provided with a positioning portion at its corner, which facilitates the connection of the energy cabin frame and the beam frame through the connecting structure and is not likely to cause interference to the battery cells.

[0026] In some embodiments, a supporting portion is further provided on the beam frame, the supporting portion and the energy cabin frame are both provided on the same side of the connecting portion along the first direction, and the supporting portion abuts against the energy cabin frame along the second direction.

[0027] By adopting the above technical solution, the supporting portion is abutted against the energy cabin frame along the second direction, so that the beam frame and the energy cabin frame can be aligned in the second direction, and it is difficult for an assembly gap to be generated between the beam frame and the energy cabin frame in the second direction.

[0028] In some embodiments, the vehicle body further includes a second fastener, which is passed through the supporting portion and the energy cabin frame along the second direction.

[0029] By adopting the above technical solution, the structural stability of the vehicle body is better, and when the vehicle encounters a collision, the connection between the beam frame and the energy cabin frame is not easy to warp and deform.

[0030] In some embodiments, a storage space for accommodating battery cells is provided in the energy cabin frame, and the connecting structure and the second fastener are both provided outside the storage space.

[0031] By adopting the above technical solution, the connecting structure and the second fastener will not enter the battery cell accommodating space, so it will not affect the assembly of the battery cell and the energy cabin frame, thereby improving the structural compactness of the energy cabin.

[0032] In some embodiments, the beam frame includes a front cabin and a rear cabin; the energy cabin frame includes a first end and a second end disposed opposite to each other along the second direction, the first end being connected to the front cabin, and the second end being connected to the rear cabin;

[0033] wherein the front compartment abuts against the first end along the first direction; and / or,

[0034] The rear compartment abuts against the second end along the first direction.

[0035] By adopting the above technical solution, the vehicle body has a three-section structure, which can adapt to the needs of upper and lower vehicle body assembly; the front cabin and / or rear cabin can abut against the energy cabin frame, so that it is not easy to generate an assembly gap between the front cabin and / or rear cabin and the energy cabin frame.

[0036] In some embodiments, the abutting portion is provided at one end of the front cabin close to the energy cabin frame; and / or,

[0037] The supporting portion is arranged at one end of the rear cabin close to the energy cabin frame.

[0038] By adopting the above technical solution, the vehicle body is not easily deformed.

[0039] In some embodiments, the front cabin further includes an upper longitudinal beam and a lower longitudinal beam distributed along the first direction, and a vertical beam connected between the upper longitudinal beam and the lower longitudinal beam; the connecting portion is connected to the upper longitudinal beam, and the supporting portion is connected to the lower longitudinal beam.

[0040] By adopting the above technical solution, the structural strength of the front cabin is improved; the connecting part falls on the upper part of the energy cabin frame along the first direction, and the supporting part supports the side of the energy cabin frame along the second direction, and the connecting part and the supporting part do not interfere with each other.

[0041] In some embodiments, the surface of the abutting portion facing the energy cabin frame and the surface of the energy cabin frame facing the abutting portion are both planes parallel to the first direction.

[0042] By adopting the above technical solution, the supporting portion can fit with the energy cabin frame and obtain a larger fitting area, which is conducive to aligning the beam frame and the energy cabin frame in the second direction.

[0043] In some embodiments, the rear cabin includes two rear longitudinal beams and a rear cross beam connected between the two rear longitudinal beams. The connecting portion is provided on the rear longitudinal beams, and the connecting portion is fixedly connected to the energy cabin frame through the connecting structure.

[0044] By adopting the above technical solution, the rear cabin can be abutted and connected to the energy cabin frame through the connecting portion on the rear longitudinal beam, reducing the space occupied by the connecting portion on the width of the rear cabin.

[0045] In some embodiments, a mounting beam is provided at the second end of the energy cabin frame, and the rear cross beam abuts against the mounting beam along the first direction;

[0046] The vehicle body further includes a third fastener, which is arranged through the rear cross beam and the mounting beam along the first direction.

[0047] By adopting the above technical solution, the rear cabin and the energy cabin frame are connected simultaneously by the first fastener and the third fastener arranged along the first direction, and have good connection strength.

[0048] In some embodiments, the beams and the energy cabin frame are both made of steel.

[0049] By adopting the above technical solution, the connection between the beam frame and the energy cabin frame, as well as the connection between the vehicle body and the upper vehicle body are less likely to suffer from electrochemical corrosion, thereby reducing manufacturing costs.

[0050] In some embodiments, at least one of the beams and the energy chamber frame comprises a rolled part.

[0051] By adopting the above technical solution, the rolled parts are easy to manufacture and have low cost, further reducing the manufacturing cost of the vehicle.

[0052] An embodiment of the second aspect of the present application provides a vehicle body, comprising:

[0053] Battery cells;

[0054] As for the vehicle body provided in the first aspect, the energy cabin frame in the vehicle body is used to accommodate the battery cells to assemble into an energy cabin, and the energy cabin is connected to the beam frame.

[0055] The above-mentioned vehicle body includes the vehicle body provided by the first aspect, which can also solve the problem of assembly gap; and, the battery cells are directly assembled on the energy cabin frame to form an energy cabin, and the energy cabin is connected to the beam frame through a connecting structure. Therefore, the energy cabin can be assembled or disassembled relative to the beam frame as an integral structure, which is flexible to use and easy to maintain.

[0056] An embodiment of a third aspect of the present application provides a vehicle body assembly method, comprising:

[0057] Providing an energy cabin frame according to the first aspect, and fixing battery cells to the energy cabin frame to assemble an energy cabin;

[0058] Placing the beam frame against the end of the energy cabin frame along a first direction;

[0059] The energy cabin frame is fixedly connected to the beam frame along the first direction using the connecting structure.

[0060] By adopting the above-mentioned technical solution, the body assembly method provided in the embodiment of the present application first fixes the battery cell in the energy cabin frame to form an energy cabin, and then connects the energy cabin frame to the beam frame, thereby improving the convenience and efficiency of body assembly; the energy cabin can be set independently of the beam frame, and the energy cabin can be installed or disassembled relative to the beam frame, thereby improving the maintainability and replaceability of the energy cabin; the body assembly method provided in the embodiment of the present application can be applicable to skateboard bodies with a CTC structure.

[0061] An embodiment of the fourth aspect of the present application provides a vehicle, comprising a vehicle body as provided in the first aspect or a vehicle body as provided in the second aspect.

[0062] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or conventional technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0064] FIG1 is a schematic diagram of the assembly of a vehicle body provided by some embodiments of the present application;

[0065] FIG2 is a partial enlarged view of section A of the vehicle body shown in FIG1 ;

[0066] FIG3 is a partial enlarged view of section B of the vehicle body shown in FIG1 ;

[0067] FIG4 is an exploded perspective view of the vehicle body shown in FIG1 ;

[0068] FIG5 is a perspective schematic diagram of the front compartment of the vehicle body shown in FIG4 ;

[0069] FIG6 is an exploded perspective view of the energy cabin frame in the vehicle body shown in FIG4 ;

[0070] FIG7 is an exploded perspective view of the energy cabin frame shown in FIG6 ;

[0071] FIG8 is a perspective schematic diagram of the rear compartment in the vehicle body shown in FIG4 ;

[0072] FIG9 is a partial schematic diagram of the front cabin and energy cabin frame of the vehicle body shown in FIG1 ;

[0073] FIG10 is a partial schematic diagram of the connection between the front cabin and the energy cabin frame shown in FIG9 ;

[0074] FIG11 is a partial schematic diagram of the rear compartment and energy compartment frame of the vehicle body shown in FIG1 ;

[0075] FIG12 is a partial cross-sectional view of the rear cabin and the energy cabin frame shown in FIG11 along line CC;

[0076] FIG13 is a flow chart of a vehicle body assembly method provided by some embodiments of the present application;

[0077] FIG14 is a simplified schematic diagram of a vehicle provided in accordance with some embodiments of the present application.

[0078] The meanings of the marks in the figure are as follows: 1. Vehicle; 100. Vehicle body; 10. Beam; 101. Connecting portion; 102. Abutting portion; 11. Front cabin; 111. Upper longitudinal beam; 112. Lower longitudinal beam; 113. Vertical beam; 114. Front anti-collision beam; 115. Calf beam; 12. Rear cabin; 121. Rear longitudinal beam; 122. Rear cross beam; 123. Rear anti-collision beam; 20. Energy cabin frame; 201. Positioning portion; 202. First connecting hole ; 203, first end; 204, second end; 21, frame; 211, first beam; 212, second beam; 22, mounting plate; 23, connecting block; 24, mounting beam; 25, bottom plate; 30, connecting structure; 31, first fastener; 40, second fastener; 50, third fastener; 200, battery; 300, controller; 400, motor; Z, first direction; X, first direction; Y, second direction.

[0079] Implementation Methods of the Application

[0080] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0082] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0083] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0084] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0085] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0086] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0087] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0088] In this application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells, or magnesium-ion battery cells, etc., and the embodiments of this application do not limit this. Battery cells may be cylindrical, flat, rectangular, or other shapes, etc., and the embodiments of this application do not limit this. Battery cells are generally divided into three types based on the packaging method: cylindrical battery cells, prismatic battery cells, and soft-pack battery cells, and the embodiments of this application do not limit this.

[0089] The battery mentioned in the embodiments of this application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack.

[0090] The technical solutions described in the embodiments of the present application are applicable to vehicles, which may be fuel vehicles, gas vehicles or new energy vehicles. New energy vehicles may be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned vehicles.

[0091] At present, the lower body structure of new energy vehicles usually includes parts such as the body and batteries. However, during the assembly process of the body, it is easy to have assembly gaps between the parts, making the assembly of the body difficult.

[0092] In view of this, the present application designs a vehicle body, a vehicle body, a vehicle body assembly method and a vehicle, wherein the vehicle body includes: a beam frame, an energy cabin frame and a connecting structure, the beam frame is used to install the suspension, the energy cabin frame is used to accommodate the battery, the beam frame abuts against the end of the energy cabin along a first direction, and the first direction is the vehicle height direction; the connecting structure is configured to fix the energy cabin and the beam frame along the first direction. In the vehicle body provided by the present application, the assembly direction of the beam frame and the energy cabin frame is the same as the connection direction of the connecting structure, and it is not easy to generate an assembly gap between the beam frame and the energy cabin frame; the beam frame falls on the upper part of the energy cabin frame along the first direction, so that the beam frame and the energy cabin frame can be abutted, and the assembly process is relatively simple. The above-mentioned vehicle body is not easy to generate an assembly gap, which improves the installation accuracy and solves the problem of difficulty in assembling the vehicle body due to the assembly gap.

[0093] The first embodiment of the present application provides a vehicle body. Referring to Figures 1 to 3 , the vehicle body 100 includes a beam 10, an energy capsule frame 20, and a connecting structure 30. The beam 10 is used to mount the suspension and abuts against the end of the energy capsule frame 20 along a first direction Z, which is the vehicle's height. The connecting structure 30 is configured to securely connect the energy capsule to the beam 10 along the first direction Z.

[0094] The beam 10 is used to mount the suspension. The suspension, also known as the suspension, is the assembly of connecting mechanisms between the wheels and the vehicle body, typically including springs, shock absorbers, swing arms, and other accessories. The vehicle body is supported on the wheels by the suspension, which controls wheel bounce and ensures a smooth ride. The beam 10 is positioned on at least one side of the energy chamber frame 20 along a second direction X, which intersects the first direction Z.

[0095] In some embodiments, the second direction X is perpendicular to the first direction Z.

[0096] In some embodiments, the second direction X may be a vehicle traveling direction, where the vehicle traveling direction includes forward and backward directions.

[0097] The energy cabin frame 20 is generally a frame structure, used to accommodate a number of battery cells, which together with the battery cells form the energy cabin. The beam 10 abuts against the end of the energy cabin frame 20 along a first direction Z, which is the height direction of the vehicle. In some embodiments, the beam 10 abuts against the upper portion of the energy cabin frame 20; in other embodiments, the beam 10 may abut against the lower portion of the energy cabin frame 20.

[0098] The connection structure 30 is used to securely connect the energy cabin frame 20 to the beam frame 10 along a first direction Z. Thus, the assembly direction of the beam frame 10 and the energy cabin frame 20 is the same as the connection direction of the connection structure 30. The connection structure 30 may include fasteners such as bolts, or other connectors such as rivet posts.

[0099] During assembly, the beam frame 10 is first abutted against the end of the energy cabin frame 20 along the first direction Z, and then the energy cabin frame 20 and the beam frame 10 are fixedly connected along the first direction Z through the connecting structure 30 to assemble the vehicle body 100.

[0100] In the vehicle body 100 provided in the present application, the assembly direction of the beam 10 and the energy cabin frame 20 is the same as the connection direction of the connecting structure 30, and an assembly gap is not easily generated between the beam 10 and the energy cabin frame 20; the beam 10 falls on the end of the energy cabin frame 20 along the first direction Z, or the end of the energy cabin frame 20 falls on the beam 10 along the first direction Z, so that the beam 10 and the energy cabin frame 20 can be abutted, so that the beam 10 and the energy cabin frame 20 are aligned in the first direction Z, and the assembly process is relatively simple. The above-mentioned vehicle body 100 is not prone to assembly gaps, which improves installation accuracy and solves the problems of difficulty in vehicle body assembly due to assembly gaps and difficulty in assembling the upper and lower vehicle bodies.

[0101] Please continue to refer to Figures 1 to 3. In some embodiments, the energy cabin frame 20 is provided with a positioning portion 201 at the end along the second direction X, and the beam 10 abuts against the positioning portion 201 along the first direction Z, and the second direction X is the direction of vehicle travel; the connecting structure 30 includes a first fastener 31, and the first fastener 31 is provided along the first direction Z through the beam 10 and the positioning portion 201.

[0102] The energy cabin frame 20 and the beam frame 10 are arranged along the second direction X. The end of the energy cabin frame 20 along the second direction X is provided with a positioning portion 201 for connecting to the beam frame 10. Specifically, the beam frame 10 abuts and fits against the positioning portion 201 along the first direction Z, so that an assembly gap is not easily generated between the beam frame 10 and the positioning portion 201; the connection structure 30 includes one or more first fasteners 31. In some embodiments, the first fasteners 31 are bolts, and the threading direction of the first fasteners 31 is the same as the vehicle body assembly direction, both in the first direction Z; in other embodiments, the first fasteners 31 can also be screws or other fastening connectors.

[0103] In some embodiments, the beam 10 includes a front compartment 11 and a rear compartment 12, respectively disposed on either side of the energy compartment frame 20 along the second direction X. Positioning portions 201 are provided at both ends of the energy compartment frame 20 along the second direction X, such that the ends of the energy compartment frame 20 are connected to the front compartment 11 and the rear compartment 12, respectively, via the positioning portions 201 and the connecting structure 30. In other embodiments, the beam 10 may also be disposed at one end of the energy compartment frame 20 along the second direction X, in which case the energy compartment frame 20 is provided with a positioning portion 201 at the end facing the beam 10.

[0104] By adopting the above technical solution, a positioning portion 201 is provided at the end of the energy cabin frame 20, and the beam 10 abuts against the positioning portion 201 along the first direction Z, so that it is not easy to generate an assembly gap between the beam 10 and the energy cabin frame 20; the first fastener 31 is passed through the beam 10 and the positioning portion 201 along the first direction Z, so that the first fastener 31 can assemble or disassemble the energy cabin frame 20 and the beam 10 along the first direction Z; the above-mentioned vehicle body 100 does not need to be provided with fasteners arranged along the width direction of the vehicle body (the third direction Y), which solves the problem that the energy cabin frame 20 and the beam 10 are prone to generate an assembly gap in the width direction of the vehicle body.

[0105] 1 and 4 , in some embodiments, the beam 10 is provided with a connecting portion 101 extending along the second direction X; the connecting portion 101 abuts and fits against the positioning portion 201 along the first direction Z, and the first fastener 31 is passed through the connecting portion 101 and the positioning portion 201 along the first direction Z.

[0106] The beam 10 is provided with a connecting portion 101 extending along the second direction X, that is, extending toward the energy cabin frame 20 to facilitate connection with the positioning portion 201. As shown in Figure 4, the front cabin 11 and the rear cabin 12 of the beam 10 are each provided with two spaced apart connecting portions 101. It is understood that the number of connecting portions 101 can be one or another. The connecting portion 101 can be box-shaped, frame-shaped, flat-plate-shaped, or can also have an irregular shape.

[0107] In some embodiments, the connecting portion 101 is arranged on the side of the beam frame 10 along the third direction Y. In other embodiments, the connecting portion 101 can also be arranged in the middle of the beam frame 10 along the third direction Y. It can be understood that the positioning portion 201 is arranged corresponding to the connecting portion 101.

[0108] By providing the connecting portion 101 extending along the second direction X on the beam 10 , it is convenient to overlap the connecting portion 101 above the positioning portion 201 , so that the beam 10 abuts against and fits the positioning portion 201 .

[0109] 4 to 8 , in some embodiments, the surfaces where the positioning portion 201 and the connecting portion 101 abut against each other are both flat.

[0110] Specifically, the surface of the positioning portion 201 facing the connecting portion 101 and the surface of the connecting portion 101 facing the positioning portion 201 are both planes. In this way, the positioning portion 201 and the connecting portion 101 can fit tightly together, further reducing the probability of an assembly gap between the beam frame 10 and the energy cabin frame 20.

[0111] In other embodiments, the surfaces on which the positioning portion 201 and the connecting portion 101 abut against each other may also be non-planar. For example, the surface of the positioning portion 201 facing the connecting portion 101 is provided with a protrusion, and the surface of the connecting portion 101 facing the positioning portion 201 is provided with a pit that matches the protrusion. In this way, the protrusion and the pit can play a positioning role, and the remaining areas of the positioning portion 201 and the connecting portion 101 can still remain in contact.

[0112] In some embodiments, at least two connecting parts 101 are provided on the beam frame 10, wherein the two connecting parts 101 are arranged at intervals along the third direction Y, and the third direction Y is perpendicular to the first direction Z and the second direction X; at least two positioning parts 201 are provided on the energy cabin frame 20, wherein the two positioning parts 201 are arranged at intervals along the third direction Y, and the connecting parts 101 are connected one-to-one with the positioning parts 201.

[0113] Specifically, the beam frame 10 includes a front compartment 11 and a rear compartment 12. At least one of the front compartment 11 and the rear compartment 12 is provided with two connecting portions 101 spaced apart along a third direction Y. Each connecting portion 101 extends toward the energy compartment frame 20 along a second direction X. The energy compartment frame 20 is provided with two positioning portions 201 at each end along the second direction X. The connecting portions 101 are connected to the positioning portions 201 in a one-to-one correspondence. The third direction Y can be the width of the vehicle body.

[0114] By arranging at least two connecting parts 101 spaced apart along the third direction Y on the beam frame 10, each connecting part 101 can be connected to the corresponding positioning part 201 along the first direction Z, thereby improving the connection strength between the beam frame 10 and the energy cabin frame 20, and the vehicle body 100 has better structural stability.

[0115] As shown in Figures 6 and 7, in some embodiments, a positioning portion 201 is provided at a corner of the energy cabin frame 20. The energy cabin frame 20 includes a frame 21, a mounting plate 22 disposed within the frame 21, and a connecting block 23 disposed at a corner of the frame 21. The mounting plate 22 is used to connect multiple battery cells. The corner of the frame 21 and the connecting block 23 together form the positioning portion 201. At least one of the frame 21 and the connecting block 23 is provided with a first connecting hole 202 for mounting a first fastener 31.

[0116] Optionally, the energy cabin frame 20 is a square frame structure, and the four corners of the energy cabin frame 20 are provided with positioning parts 201, that is, the four corners of the energy cabin frame 20 are connected to the beam frame 10 through the positioning parts 201.

[0117] The energy cabin frame 20 includes a frame 21, a mounting plate 22 disposed within the frame 21, and a connecting block 23 disposed at a corner of the frame 21. The frame 21 includes two first beams 211 extending along the second direction X and two second beams 212 extending along the third direction Y. The two first beams 211 and the two second beams 212 together form a hollow frame 21; the mounting plate 22 is fixed within the frame 21 and is used to securely connect the battery cells. Optionally, the battery cells are bonded to the mounting plate 22 by a colloid. Optionally, the energy cabin frame 21 also includes a bottom plate 25, which is connected to the frame 21 and disposed opposite the mounting plate 22 along the first direction Z. The battery cells are disposed between the bottom plate 25 and the mounting plate 22.

[0118] The connecting block 23 may be an L-shaped block structure so as to be fixed to the corner of the frame 21 ; the connecting block 23 is provided on a side of the mounting plate 22 away from the battery.

[0119] The corners of the frame 21 and the connecting block 23 together form the positioning portion 201. Optionally, the corners of the frame 21 are flush with the top surface of the connecting block 23 so that the surface of the positioning portion 201 is flat, which facilitates the positioning portion 201 to fit the connecting portion 101.

[0120] At least one of the frame 21 and the connecting block 23 is provided with a first connecting hole 202 for installing the first fastener 31. For example, as shown in FIG6 , the frame 21 and the connecting block 23 are respectively provided with a first connecting hole 202, so that both the frame 21 and the connecting block 23 can be fixedly connected to the beam 10 via the first fastener 31.

[0121] The energy cabin frame 20 provided in the embodiment of the present application can fix the battery cells. The energy cabin frame 20 is provided with a positioning portion 201 at its corner, which facilitates the connection between the energy cabin frame 20 and the beam frame 10 through the connecting structure 30 and is not likely to cause interference to the battery cells.

[0122] Please refer to Figures 2, 5, 9 and 10. In some embodiments, a supporting portion 102 is further provided on the beam frame 10. The supporting portion 102 and the energy cabin frame 20 are both provided on the same side of the connecting portion 101 along the first direction Z, and the supporting portion 102 abuts against the energy cabin frame 20 along the second direction X.

[0123] Optionally, the abutting portion 102 is provided on the front cabin 11; it is understood that the abutting portion 102 may also be provided on the rear cabin 12. The abutting portion 102 and the energy cabin frame 20 are both provided on the same side of the connecting portion 101 along the first direction Z. For example, in some embodiments, the abutting portion 102 and the energy cabin frame 20 are both provided below the connecting portion 101.

[0124] Since the beam 10 and the energy cabin frame 20 are arranged along the second direction X, by abutting the supporting portion 102 against the energy cabin frame 20 along the second direction X, the beam 10 and the energy cabin frame 20 can be aligned in the second direction X, and it is not easy to generate an assembly gap between the beam 10 and the energy cabin frame 20 in the second direction X.

[0125] In some embodiments, the vehicle body 100 further includes a second fastener 40 , which is disposed along the second direction X through the supporting portion 102 and the energy cabin frame 20 .

[0126] The second fastener 40 is a bolt. In other embodiments, the second fastener 40 may also be other connecting members. The second fastener 40 is provided along the second direction X through the abutting portion 102 and the energy cabin frame 20. In this way, the second fastener 40 can securely connect the abutting portion 102 and the energy cabin frame 20 in the second direction X, thereby improving the connection strength between the beam frame 10 and the energy cabin frame 20. The structural stability of the vehicle body 100 is improved, and when the vehicle encounters a collision, the connection between the beam frame 10 and the energy cabin frame 20 is not easily warped or deformed.

[0127] When assembling the front cabin 11 and the energy cabin frame 20, first place one end of the front cabin 11 onto the energy cabin frame 20, so that the abutting portion 102 abuts the energy cabin frame 20. Then, insert the second fastener 40 through the abutting portion 102 and the energy cabin frame 20 along the second direction X. This prevents installation gaps from being generated in the second direction X. Next, tighten the first fastener 31 along the first direction Z to achieve a fixed connection between the front cabin 11 and the energy cabin frame 20. The assembly and connection method of the vehicle body 100 described above is primarily in the first direction Z, supplemented by the second direction X, further improving assembly accuracy.

[0128] 6 , 7 and 10 , in some embodiments, a storage space for accommodating battery cells is provided in the energy cabin frame 20 , and the connecting structure 30 and the second fastener 40 are both provided outside the storage space.

[0129] In some embodiments, a space is provided within the first beam 211 or the second beam 212 for the first fastener 31 and the second fastener 40 to pass through. The first fastener 31 and the second fastener 40 do not penetrate the first beam 211. Therefore, the first fastener 31 and the second fastener 40 do not extend into the accommodation space of the energy cabin frame 20. For example, a space is provided within the first beam 211 near the front cabin 11 for the first fastener 31 and the second fastener 40 to pass through, and a space is provided within the second beam 212 near the rear cabin 12 for the second fastener 40 to pass through.

[0130] By adopting the above technical solution, the connecting structure 30 and the second fastener 40 will not enter the accommodation space of the battery cell, so it will not affect the assembly of the battery cell and the energy cabin frame 20, thereby improving the structural compactness of the energy cabin and the vehicle body 100.

[0131] Please refer to Figures 1 to 4. In some embodiments, the beam frame 10 includes a front cabin 11 and a rear cabin 12; the energy cabin frame 20 includes a first end 203 and a second end 204 arranged opposite to each other along the second direction X, the first end 203 is connected to the front cabin 11, and the second end 204 is connected to the rear cabin 12; wherein the front cabin 11 abuts against the first end 203 along the first direction Z; and / or, the rear cabin 12 abuts against the second end 204 along the first direction Z.

[0132] The vehicle body 100 provided in the embodiment of the present application is a three-section combined structure, and the energy cabin frame 20 is arranged between the front cabin 11 and the rear cabin 12 along the traveling direction of the vehicle body. Both the front cabin 11 and the rear cabin 12 can be equipped with suspension.

[0133] In some embodiments, the front cabin 11 abuts against the first end 203 along the first direction Z, and the front cabin 11 is connected to the energy cabin frame 20 through a first fastener 31 arranged along the first direction Z; the rear cabin 12 abuts against the second end 204 along the first direction Z, and the rear cabin 12 is connected to the energy cabin frame 20 through a first fastener 31 arranged along the first direction Z; in other embodiments, only one of the front cabin 11 and the rear cabin 12 may be connected to the energy cabin frame 20 through the first fastener 31.

[0134] The vehicle body 100 provided in the embodiment of the present application is a three-section structure, which can adapt to the needs of assembling the upper and lower vehicle bodies; the front cabin 11 and / or the rear cabin 12 can abut against the energy cabin frame 20, so that it is not easy to generate an assembly gap between the front cabin 11 and / or the rear cabin 12 and the energy cabin frame 20.

[0135] In some embodiments, the supporting portion 102 is provided at one end of the front cabin 11 close to the energy cabin frame 20 ; and / or, the supporting portion 102 is provided at one end of the rear cabin 12 close to the energy cabin frame 20 .

[0136] As shown in Figures 4 and 5, in some embodiments, the abutment portion 102 is provided at one end of the front compartment 11 near the energy compartment frame 20, and the second fastener 40 connects the abutment portion 102 and the energy compartment frame 20. In this way, when the front of the vehicle collides, the connection between the front compartment 11 and the energy compartment frame 20 is less likely to warp or deform.

[0137] It is understood that the end of the rear compartment 12 close to the energy compartment frame 20 may also be provided with a supporting portion 102. In addition, since the rear compartment 12 can absorb the energy of the rear collision of the vehicle, the supporting portion 102 on the rear compartment 12 may also be omitted.

[0138] Please refer to Figures 1 and 5. In some embodiments, the front cabin 11 also includes an upper longitudinal beam 111 and a lower longitudinal beam 112 distributed along the first direction Z, and a vertical beam 113 connected between the upper longitudinal beam 111 and the lower longitudinal beam 112; the connecting portion 101 is connected to the upper longitudinal beam 111, and the supporting portion 102 is connected to the lower longitudinal beam 112.

[0139] The upper longitudinal beam 111 is arranged above the lower longitudinal beam 112. The extension direction of the upper longitudinal beam 111 and the lower longitudinal beam 112 can be the second direction X, or can form a certain angle with the second direction X. The vertical beam 113 is connected between a pair of upper longitudinal beams 111 and lower longitudinal beams 112. The vertical beam 113 can extend along the first direction Z or be arranged obliquely with respect to the first direction Z. The connecting portion 101 is connected to one end of the upper longitudinal beam 111 close to the energy cabin frame 20, and the supporting portion 102 is connected to one end of the lower longitudinal beam 112 close to the energy cabin frame 20. In this way, the connecting portion 101 is arranged above the supporting portion 102.

[0140] Optionally, there are two upper longitudinal beams 111 and the two upper longitudinal beams 111 are spaced apart along the third direction Y; there are two lower longitudinal beams 112 and the two lower longitudinal beams 112 are also spaced apart along the third direction Y.

[0141] Optionally, the front cabin 11 also includes a front anti-collision beam 114 connected between a pair of upper longitudinal beams, and a calf beam 115 connected between a pair of lower longitudinal beams; the calf beam 115 can also be called a pedestrian protection anti-collision beam or a pedestrian prevention device, which can protect pedestrians outside the vehicle.

[0142] Optionally, energy absorption boxes may be provided on both the upper longitudinal beam 111 and the lower longitudinal beam 112 .

[0143] The front cabin 11 provided in the embodiment of the present application has an upper and lower longitudinal beam structure, which improves the structural strength; and the connecting portion 101 is connected to the upper longitudinal beam 111, and the supporting portion 102 is connected to the lower longitudinal beam 112, which can not only enable the connecting portion 101 to fall on the upper part of the energy cabin frame 20 along the first direction Z, but also enable the supporting portion 102 to support the side of the energy cabin frame 20 along the second direction X. The structure of the above-mentioned front cabin 11 is relatively clever and practical, and the connecting portion 101 and the supporting portion 102 do not interfere with each other.

[0144] As shown in FIG. 10 , in some embodiments, the surface of the abutting portion 102 facing the energy cabin frame 20 and the surface of the energy cabin frame 20 facing the abutting portion 102 are both planes parallel to the first direction Z.

[0145] By adopting the above technical solution, the supporting portion 102 can fit with the energy cabin frame 20 and obtain a larger fitting area, which is conducive to aligning the beam frame 10 and the energy cabin frame 20 in the second direction X.

[0146] Please refer to Figures 4, 8, 11 and 12. In some embodiments, the rear cabin 12 includes two rear longitudinal beams 121 and a rear cross beam 122 connected between the two rear longitudinal beams 121. The rear longitudinal beams 121 are provided with a connecting portion 101; the connecting portion 101 on the rear longitudinal beam 121 is fixedly connected to the energy cabin frame 20 through a connecting structure 30.

[0147] Optionally, both rear longitudinal beams 121 are provided with a connecting portion 101, and each connecting portion 101 is fixedly connected to the energy cabin frame 20 via a first fastener 31. Optionally, the first fastener 31 is provided through the connecting portion 101 and the first beam body 211 of the energy cabin frame 20. Optionally, each connecting portion 101 is fixedly connected to the energy cabin frame 20 via multiple first fasteners 31, and the multiple first fasteners can be spaced apart along the second direction X to improve the connection strength and structural stability.

[0148] By adopting the above technical solution, the rear cabin 12 can be abutted and connected to the energy cabin frame 20 through the connecting portion 101 on the rear longitudinal beam 121, reducing the space occupied by the connecting portion 101 on the width of the rear cabin 12.

[0149] In some embodiments, the second end 204 of the energy cabin frame 20 is provided with a mounting beam 24, and the rear cross beam 122 abuts against the mounting beam 24 along the first direction Z; the vehicle body 100 also includes a third fastener 50, which is passed through the rear cross beam 122 and the mounting beam 24 along the first direction Z.

[0150] The third fastener 50 can be a bolt or other connecting member. There can be multiple third fasteners 50 , which are spaced apart and distributed along the mounting beam 24 .

[0151] By adopting the above technical solution, the rear cabin 12 and the energy cabin frame 20 are connected simultaneously by the first fastener 31 and the third fastener 50 arranged along the first direction Z, and have good connection strength.

[0152] In some embodiments, the beam 10 and the energy cabin frame 20 are both made of steel.

[0153] Specifically, the front cabin 11, rear cabin 12, and energy cabin frame 20 are all made of steel. In some cases, the beam frame 10 and / or partial structures of the energy cabin frame 20 are made of aluminum. This can lead to electrochemical corrosion when the vehicle body is joined to the steel upper body. Therefore, special treatment is required at the steel-aluminum joint area, increasing the cost of each vehicle.

[0154] The beam frame 10 and the energy cabin frame 20 provided in the embodiment of the present application are both made of steel parts. The connection between the beam frame 10 and the energy cabin frame 20, as well as the connection between the vehicle body 100 and the upper vehicle body are not prone to electrochemical corrosion, which reduces manufacturing costs.

[0155] In some embodiments, at least one of the beam 10 and the energy chamber frame 20 comprises a rolled part.

[0156] Please refer to Figures 1 to 12. The beam frame 10 and the energy cabin frame 20 are both made of steel, and the beam frame 10 and the energy cabin frame 20 can both include rolled parts. Optionally, one or more of the upper longitudinal beam 111, the lower longitudinal beam 112, the rear cross beam 122, the rear longitudinal beam 121, the first beam body 211, and the second beam body 212 are rolled parts.

[0157] By adopting the above technical solution, the rolled parts are easy to manufacture and have low cost, further reducing the manufacturing cost of the vehicle.

[0158] In some embodiments, a vehicle body 100 includes a beam frame 10, an energy cabin frame 20, and a connecting structure 30. The beam frame 10 includes a front cabin 11 and a rear cabin 12. The energy cabin frame 20 includes a first end 203 and a second end 204 disposed opposite each other along a second direction X, and each end 203 and the second end 204 are provided with a positioning portion 201. The front cabin 11 abuts the positioning portion 201 on the first end 203 along the first direction Z, and the rear cabin 12 abuts the positioning portion 201 on the second end 204 along the second direction X. The connecting structure 30 includes a first fastener 31 disposed along the first direction Z. The front cabin 11 is fixedly connected to the positioning portion 201 on the first end 203 via the first fastener 31, and the rear cabin 12 is fixedly connected to the positioning portion 201 on the second end 204 via a second fastener 40.

[0159] In some embodiments, a supporting portion 102 is further provided on the front cabin 11 , and the supporting portion 102 is supported on the energy cabin frame 20 and is fixedly connected to the energy cabin frame 20 via a second fastener 40 provided along the second direction X.

[0160] The vehicle body 100 provided in the embodiment of the present application has the front cabin 11 and the rear cabin 12 respectively abutted against the two ends of the energy cabin frame 20 along the first direction Z, and is fixedly connected by a first fastener 31 arranged along the first direction Z. Therefore, the assembly direction between the front cabin 11 and the energy cabin frame 20, and the connection method of the connecting structure 30 between the rear cabin 12 and the energy cabin frame 20 are the same, and it is not easy to generate assembly gaps, thereby improving the dimensional accuracy and assembly accuracy of the vehicle body 100.

[0161] An embodiment of the second aspect of the present application provides a vehicle body, including battery cells and a vehicle body 100 as provided in the first aspect. The energy cabin frame 20 in the vehicle body 100 is used to accommodate the battery cells to assemble into an energy cabin, and the energy cabin is connected to the beam frame 10.

[0162] In a vehicle body, the number of battery cells may be one or more. When the number of battery cells is multiple, multiple battery cells together constitute a battery; multiple battery cells may be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in both series and parallel.

[0163] The vehicle body provided in the embodiment of the present application includes a vehicle body 100 and battery cells. The vehicle body 100 includes a beam frame 10 and an energy cabin frame 20, wherein the energy cabin frame 20 and the battery cells therein constitute an energy cabin, and the energy cabin is connected to the beam frame 10, that is, the energy cabin is connected to the beam frame 10 via a connecting structure 30. The above-mentioned vehicle body includes the vehicle body 100 provided in the first aspect, which can also solve the problem of assembly gap; moreover, the battery cells are directly assembled on the energy cabin frame 20 to form an energy cabin, and the energy cabin is connected to the beam frame 10 via a connecting structure 30. Therefore, the energy cabin can be assembled or disassembled relative to the beam frame 10 as an integral structure, which is flexible to use and easy to maintain.

[0164] Referring to FIG. 1 to FIG. 13 , an embodiment of a third aspect of the present application provides a vehicle body assembly method, comprising:

[0165] Step S1: Fix the battery cells to the energy cabin frame 20 to assemble the energy cabin.

[0166] Specifically, a vehicle body 100 as provided in the first aspect is provided, wherein the energy cabin frame 20 and the beam frame 10 are not yet connected.

[0167] In some embodiments, multiple battery cells can be directly fixed to the energy chamber frame 20 for use as batteries, without first assembling the battery cells into a battery pack and then fixing the battery pack to the energy chamber frame 20. It is understood that in other embodiments, multiple battery cells can also be first assembled into a battery module and then the battery module can be fixedly connected to the energy chamber frame 20.

[0168] In some embodiments, the battery cells are first bonded to the mounting plate 22 of the energy cabin frame 20 using a colloid, and then the base plate 25 is fixedly connected to the energy cabin frame 20. At this point, the battery cells are located within the accommodation space enclosed by the frame 21, the mounting plate 22, and the base plate 25. By first fixing the battery cells to the energy cabin frame 20, the operating space required for assembling the energy cabin is reduced, making assembly more convenient.

[0169] Step S2: placing the beam 10 in contact with the end of the energy cabin frame 20 along the first direction Z.

[0170] The beam 10 can be directly placed on the end of the energy cabin frame 20 to support and fit the beam 10 to the energy cabin frame 20. The beam 10 can include a front cabin 11 and a rear cabin 12, and the front cabin 11 is respectively connected to the first end 203 of the energy cabin frame 20, and the rear cabin 12 is respectively connected to the second end 204 of the energy cabin frame 20.

[0171] Step S3: using the connection structure 30 to fix the energy cabin frame 20 and the beam frame 10 along the first direction Z.

[0172] The front cabin 11 and the rear cabin 12 of the beam frame 10 are respectively connected to the two ends of the energy cabin frame 20 through the connecting structure 30.

[0173] The vehicle body assembly method provided in the embodiment of the present application first fixes the battery cells to the energy cabin frame 20 to form an energy cabin, and then connects the energy cabin to the beam frame 10, thereby improving the convenience and efficiency of vehicle body assembly; the energy cabin can be set independently of the beam frame 10, and the energy cabin can be installed or removed relative to the beam frame 10, thereby improving the maintainability and replaceability of the energy cabin; the vehicle body assembly method provided in the embodiment of the present application can be applied to skateboard bodies with a CTC structure, where CTC refers to Cell to Chasis, i.e., integrating the battery cell into the chassis. Compared to the method of first assembling the energy cabin frame 20, the front cabin 11, and the rear cabin 12 into a vehicle body, and then assembling the battery to the vehicle body, the vehicle body assembly method provided in the present application does not require flipping the entire vehicle body to install the battery cells, requires less operating space, and improves the convenience of assembling the battery.

[0174] An embodiment of the fourth aspect of the present application provides a vehicle, comprising a vehicle body as provided in the first aspect.

[0175] Figure 14 is a simplified schematic diagram of the vehicle 1 provided in some embodiments of the present application. As shown in Figure 14, a battery 200 is provided inside the vehicle 1, and the battery 200 can be provided in the energy cabin frame of the vehicle 1. The battery 200 can be used to power the vehicle 1, for example, the battery 200 can serve as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 300 and a motor 400, and the controller 300 is used to control the battery 200 to power the motor 400, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving. In some embodiments of the present application, the battery 200 can not only serve as the operating power source of the vehicle 1, but also serve as the driving power source of the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0176] [Corrected on 19.04.2024 according to Rule 91] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A vehicle body, provided in a vehicle, characterized in that: The vehicle body comprises: beam frame, used to mount the suspension; An energy cabin frame, wherein the beam frame abuts against an end of the energy cabin frame along a first direction, wherein the first direction is a vehicle height direction; The connection structure is configured to fixedly connect the energy cabin frame and the beam frame along the first direction.

2. The vehicle body according to claim 1, characterized in that: A positioning portion is provided at an end portion of the energy cabin frame along a second direction, and the beam frame abuts against the positioning portion along the first direction, and the second direction is a vehicle travel direction; The connection structure includes a first fastener, and the first fastener is penetrated through the beam frame and the positioning portion along the first direction.

3. The vehicle body according to claim 2, characterized in that: The beam frame is provided with a connecting portion extending along the second direction; The connecting portion abuts against and fits the positioning portion along the first direction, and the first fastener penetrates the connecting portion and the positioning portion along the first direction.

4. The vehicle body according to claim 3, characterized in that: The surfaces where the positioning portion and the connecting portion abut against each other are both planes.

5. The vehicle body according to claim 3 or 4, characterized in that: At least two connecting parts are provided on the beam frame, wherein the two connecting parts are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and the second direction; At least two positioning parts are provided on the energy cabin frame, wherein two positioning parts are arranged at intervals along the third direction, and the connecting parts are connected to the positioning parts in a one-to-one correspondence.

6. The vehicle body according to claim 4 or 5, characterized in that: The energy cabin frame includes a frame body, a mounting plate arranged in the frame body, and a connecting block arranged at a corner of the frame body, wherein the mounting plate is used to connect a battery cell; The corner of the frame and the connecting block together form the positioning portion, and at least one of the frame and the connecting block is provided with a first connecting hole for installing the first fastener.

7. The vehicle body according to any one of claims 1 to 6, characterized in that: The beam frame is also provided with a supporting portion, the supporting portion and the energy cabin frame are both provided on the same side of the connecting portion along the first direction, and the supporting portion abuts against the energy cabin frame along a second direction, and the second direction is the direction of vehicle travel.

8. The vehicle body according to claim 7, characterized in that: The vehicle body further includes a second fastener, and the second fastener is penetrated through the supporting portion and the energy cabin frame along the second direction.

9. The vehicle body according to claim 8, characterized in that: The energy cabin frame is provided with a storage space for accommodating battery cells, and the connection structure and the second fastener are both arranged outside the storage space.

10. The vehicle body according to any one of claims 7 to 9, characterized in that: The beam frame includes a front cabin and a rear cabin; the energy cabin frame includes a first end and a second end arranged opposite to each other along the second direction, the first end is connected to the front cabin, and the second end is connected to the rear cabin; Wherein, the front compartment abuts against the first end along the first direction; and / or, The rear compartment abuts against the second end along the first direction.

11. The vehicle body according to claim 10, characterized in that: The abutting portion is disposed at one end of the front cabin close to the energy cabin frame; and / or, The supporting portion is arranged at one end of the rear cabin close to the energy cabin frame.

12. The vehicle body according to claim 11, characterized in that: The front cabin also includes an upper longitudinal beam and a lower longitudinal beam distributed along the first direction, and a vertical beam connected between the upper longitudinal beam and the lower longitudinal beam; the connecting portion is connected to the upper longitudinal beam, and the supporting portion is connected to the lower longitudinal beam.

13. The vehicle body according to any one of claims 7 to 12, characterized in that: The surface of the abutting portion facing the energy cabin frame and the surface of the energy cabin frame facing the abutting portion are both planes parallel to the first direction.

14. The vehicle body according to any one of claims 10 to 12, characterized in that: The rear cabin comprises two rear longitudinal beams and a rear cross beam connected between the two rear longitudinal beams. The rear longitudinal beams are provided with the connecting portion, and the connecting portion is fixedly connected to the energy cabin frame via the connecting structure.

15. The vehicle body according to claim 14, characterized in that: A mounting beam is provided at the second end of the energy cabin frame, and the rear cross beam abuts against the mounting beam along the first direction; The vehicle body further includes a third fastener, and the third fastener is disposed through the rear cross beam and the mounting beam along the first direction.

16. The vehicle body according to any one of claims 1 to 15, characterized in that: The beam frame and the energy cabin frame are both made of steel.

17. The vehicle body according to any one of claims 1 to 16, characterized in that: At least one of the beams and the energy chamber frame comprises a rolled part.

18. A vehicle body, characterized in that: include: Battery cells; The vehicle body as described in any one of claims 1-17, wherein the energy cabin frame in the vehicle body is used to accommodate the battery cells to assemble into an energy cabin, and the energy cabin is connected to the beam frame.

19. A vehicle body assembly method, characterized in that: include: Providing a vehicle body as claimed in any one of claims 1 to 17, and fixing a battery cell to the energy cabin frame to assemble into an energy cabin; Placing the beam frame against the end of the energy cabin frame along a first direction; The energy cabin frame is fixedly connected to the beam frame along the first direction using the connection structure.

20. A vehicle, characterized in that: Comprising the vehicle body according to any one of claims 1 to 17 or the vehicle body according to claim 18.

Images