Vehicle body, vehicle body, vehicle body assembling method and vehicle

Abstract

The invention is suitable for the field of vehicles, and provides a vehicle body, a vehicle body, a vehicle body assembling method and a vehicle, the vehicle body is arranged in the vehicle, and the vehicle body comprises a beam frame used for installing a suspension; the beam frame abuts against the end of the energy cabin frame in the first direction, and the first direction is the height direction of the vehicle; and the connecting structure is configured to fixedly connect the energy cabin frame with the beam frame in the first direction. According to the vehicle body provided by the embodiment of the invention, an assembly gap is not easy to generate between the beam frame and the energy cabin frame, and the assembly difficulty of the vehicle body is reduced.

Description

Technical Field

[0001] 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

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. New energy vehicles have become an important part of the sustainable development of the automobile industry due to their energy-saving and environmental protection advantages.

[0003] 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 it difficult to assemble the body. Summary of the invention

[0004] 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 that assembly gaps are easily present between parts of the vehicle body.

[0005] An embodiment of the first aspect of the present application provides a vehicle body, which is provided in a vehicle, and the vehicle body includes:

[0006] beam frame, used to mount the suspension;

[0007] An energy cabin frame, wherein the beam frame abuts against an end of the energy cabin along a first direction, wherein the first direction is a vehicle height direction;

[0008] The connection structure is configured to fixedly connect the energy cabin frame and the beam frame along the first direction.

[0009] The vehicle body proposed in the embodiment of the present application includes a beam frame, an energy cabin frame and a connecting structure, wherein 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 to 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.

[0010] In some embodiments, a positioning portion is provided at an end portion of the energy cabin frame along the second direction, and the beam frame abuts against the positioning portion along the first direction, and the second direction is the direction of vehicle travel;

[0011] 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.

[0012] By adopting the above technical solution, a positioning portion is provided at the end of the energy cabin frame, and the beam frame abuts against the positioning portion along the first direction, so that it is not easy to generate an assembly gap between the beam frame and the energy cabin frame. The first fastener is inserted through the beam frame and the positioning portion along the first direction, so that the first fastener can assemble or disassemble the energy cabin frame and the beam frame along the first direction; the above vehicle body does not need to be provided with fasteners arranged along the width direction of the vehicle body, which solves the problem that the energy cabin frame and the beam frame are prone to generate an assembly gap in the width direction of the vehicle body.

[0013] In some embodiments, the beam frame is provided with a connecting portion extending along the second direction;

[0014] 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.

[0015] 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 against and fits the positioning portion.

[0016] In some embodiments, surfaces where the positioning portion and the connecting portion abut against each other are both planes.

[0017] 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.

[0018] In some embodiments, at least two connecting portions are provided on the beam frame, 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;

[0019] 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.

[0020] 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.

[0021] In some embodiments, the energy cabin frame includes a frame, a mounting plate disposed in the frame, and a connecting block disposed at a corner of the frame, wherein the mounting plate is used to connect a battery cell;

[0022] 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.

[0023] 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 with the beam frame through the connecting structure and is not likely to cause interference to the battery cells.

[0024] 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.

[0025] By adopting the above technical solution, the abutting 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 not easy to generate an assembly gap between the beam frame and the energy cabin frame in the second direction.

[0026] In some embodiments, 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.

[0027] 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.

[0028] In some embodiments, a storage space for accommodating battery cells is provided in the energy cabin frame, and the connection structure and the second fastener are both provided outside the storage space.

[0029] By adopting the above technical solution, neither the connecting structure nor the second fastener will 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.

[0030] 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 is connected to the front cabin, and the second end is connected to the rear cabin;

[0031] Wherein, the front compartment abuts against the first end along the first direction; and / or,

[0032] The rear compartment abuts against the second end along the first direction.

[0033] By adopting the above technical solution, the vehicle body has a three-section structure, which can meet the needs of upper and lower vehicle body assembly; the front cabin and / or the rear cabin can abut against the energy cabin frame, so that an assembly gap is not easily generated between the front cabin and / or the rear cabin and the energy cabin frame.

[0034] In some embodiments, the abutting portion is disposed at one end of the front cabin close to the energy cabin frame; and / or,

[0035] The supporting portion is arranged at one end of the rear cabin close to the energy cabin frame.

[0036] By adopting the above technical solution, the vehicle body is not easily deformed.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 the alignment of the beam frame and the energy cabin frame in the second direction.

[0041] 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.

[0042] By adopting the above technical solution, the rear cabin can be abutted and connected to the energy cabin frame through the connecting part on the rear longitudinal beam, thereby reducing the space occupied by the connecting part on the width of the rear cabin.

[0043] 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;

[0044] 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.

[0045] 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.

[0046] In some embodiments, the beam frame and the energy cabin frame are both made of steel.

[0047] By adopting the above technical solution, the connection between the beam frame and the energy cabin frame, and the connection between the vehicle body and the upper vehicle body are less prone to electrochemical corrosion, thereby reducing the manufacturing cost.

[0048] In some embodiments, at least one of the beams and the energy chamber frame comprises a rolled part.

[0049] 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.

[0050] The embodiment of the second aspect of the present application provides a vehicle body, comprising:

[0051] Battery cells;

[0052] 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.

[0053] 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.

[0054] The embodiment of the third aspect of the present application provides a vehicle body assembly method, comprising:

[0055] Providing an energy cabin frame as described in the first aspect, and fixing battery cells to the energy cabin frame to assemble an energy cabin;

[0056] Placing the beam frame against the end of the energy cabin frame along a first direction;

[0057] The energy cabin frame is fixedly connected to the beam frame along the first direction using the connection structure.

[0058] By adopting the above-mentioned technical scheme, the body assembly method provided in the embodiment of the present application first fixes the battery cells 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 a skateboard body with a CTC structure.

[0059] An embodiment of a fourth aspect of the present application provides a vehicle, comprising a vehicle body as provided in the first aspect.

[0060] 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

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or conventional technical descriptions will be briefly introduced below. 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 creative labor.

[0062] Figure 1 is a schematic diagram of the assembly of a vehicle body provided by some embodiments of the present application;

[0063] Figure 2 yes Figure 1 A partial enlarged view of section A in the vehicle body is shown;

[0064] Figure 3 yes Figure 1 A partial enlarged view of section B of the vehicle body shown;

[0065] Figure 4 yes Figure 1 An exploded perspective view of the vehicle body shown;

[0066] Figure 5 yes Figure 4 A perspective schematic diagram of the front compartment in the vehicle body shown;

[0067] Figure 6 yes Figure 4 A perspective exploded view of the energy cabin frame in the vehicle body shown;

[0068] Figure 7 yes Figure 6 A perspective exploded view of the energy cabin frame shown;

[0069] Figure 8 yes Figure 4 A three-dimensional schematic diagram of the rear compartment in the vehicle body shown;

[0070] Fig. 9 yes Figure 1 A partial schematic diagram of the front cabin and the energy cabin frame in the vehicle body shown;

[0071] Fig.10 yes Fig. 9 A partial schematic diagram of the connection between the front cabin and the energy cabin frame shown;

[0072] Fig.11 yes Figure 1 A partial schematic diagram of the rear cabin and energy cabin frame in the vehicle body shown;

[0073] Fig.12 yes Fig.11 A partial cross-sectional view of the rear cabin and the energy cabin frame along the CC line is shown;

[0074] Fig.13 is a flow chart of a vehicle body assembly method provided by some embodiments of the present application;

[0075] Fig.14 is a simplified schematic diagram of a vehicle provided in some embodiments of the present application.

[0076] The meanings of the marks in the figure are:

[0077] 100. Vehicle body;

[0078] 10. Beam frame; 101. Connecting part; 102. Supporting part; 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;

[0079] 20. Energy cabin frame; 201. Positioning part; 202. First connection 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;

[0080] 30. connection structure; 31. first fastener; 40. second fastener; 50. third fastener;

[0081] 200, battery; 300, controller; 400, motor;

[0082] Z, first direction; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0083] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0085] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0086] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0087] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0088] 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).

[0089] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are 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 referred device or element 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.

[0090] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0091] In the present 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 the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0092] The battery mentioned in the embodiments of the present 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 the present application may include a battery module or a battery pack.

[0093] The technical solution described in the embodiments of the present application is applicable to vehicles, which may be fuel vehicles, gas vehicles or new energy vehicles. The 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.

[0094] 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 it difficult to assemble the body.

[0095] 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, wherein the beam frame is used to install a suspension, the energy cabin frame is used to accommodate batteries, and the beam frame abuts against the end of the energy cabin along a first direction, the first direction being the height direction of the vehicle; the connecting structure is configured to fixedly connect the energy cabin to 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 an assembly gap is not easy to be generated 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.

[0096] The first embodiment of the present application provides a vehicle body. Figures 1 to 3 The vehicle body 100 includes a beam frame 10, an energy cabin frame 20 and a connecting structure 30. The beam frame 10 is used to install the suspension. The beam frame 10 abuts against the end of the energy cabin frame 20 along a first direction Z, and the first direction Z is the height direction of the vehicle; the connecting structure 30 is configured to fixedly connect the energy cabin and the beam frame 10 along the first direction Z.

[0097] The beam frame 10 is used to install the suspension. The suspension is also called suspension, which is an assembly of the connection mechanism between the wheel and the vehicle body, usually including springs, shock absorbers, swing arms and other accessories. The vehicle body is supported on the wheel by the suspension, and the suspension is used to control the bounce of the wheel so that the vehicle can run smoothly. The beam frame 10 is arranged on at least one side of the energy cabin frame 20 along the second direction X, and the second direction X intersects with the first direction Z.

[0098] In some embodiments, the second direction X is perpendicular to the first direction Z.

[0099] In some embodiments, the second direction X may be a vehicle traveling direction, and the vehicle traveling direction includes a forward direction and a backward direction.

[0100] The energy cabin frame 20 is generally a frame structure, and is used to accommodate a plurality of battery cells to form an energy cabin together with the battery cells. The beam 10 abuts against the end of the energy cabin frame 20 along the first direction Z, and the first direction Z is the height direction of the vehicle. In some embodiments, the beam 10 abuts against the upper part of the energy cabin frame 20; in other embodiments, the beam 10 may also abut against the lower part of the energy cabin frame 20.

[0101] The connection structure 30 is used to fix the energy cabin frame 20 and the beam frame 10 along the first direction Z, so that 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, and may also include other connecting parts such as riveted columns.

[0102] During assembly, the beam frame 10 is firstly brought into contact with the end of the energy cabin frame 20 along the first direction Z, and then the energy cabin frame 20 is fixedly connected to the beam frame 10 along the first direction Z by the connecting structure 30 to assemble the vehicle body 100 .

[0103] In the vehicle body 100 provided in the present application, 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, and it is not easy to generate an assembly gap between the beam frame 10 and the energy cabin frame 20; the beam frame 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 frame 10 along the first direction Z, so that the beam frame 10 and the energy cabin frame 20 can be abutted, so that the beam frame 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 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 and difficulty in assembling the upper and lower vehicle bodies.

[0104] Please continue to refer to Figures 1 to 3In some embodiments, a positioning portion 201 is provided at the end of the energy cabin frame 20 along the second direction X, and the beam frame 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 passed through the beam frame 10 and the positioning portion 201 along the first direction Z.

[0105] The energy cabin frame 20 and the beam frame 10 are arranged along the second direction X, and the end of the energy cabin frame 20 along the second direction X is provided with a positioning portion 201 for connecting the beam frame 10. Specifically, the beam frame 10 abuts and fits against the positioning portion 201 along the first direction Z, so that it is not easy to generate an assembly gap 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 fastener 31 is a bolt, and the screw connection direction of the first fastener 31 is the same as the vehicle body assembly direction, both in the first direction Z; in other embodiments, the first fastener 31 can also be a screw or other fastening connector.

[0106] In some embodiments, the beam 10 includes a front cabin 11 and a rear cabin 12 respectively arranged on both sides of the energy cabin frame 20 along the second direction X, and the energy cabin frame 20 is provided with a positioning portion 201 at both ends along the second direction X, so that the two ends of the energy cabin frame 20 are respectively connected to the front cabin 11 and the rear cabin 12 through the positioning portion 201 and the connecting structure 30. In other embodiments, the beam 10 can also be arranged at one end of the energy cabin frame 20 along the second direction X, and the energy cabin frame 20 is provided with a positioning portion 201 at the end facing the beam 10.

[0107] 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 penetrated 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 it is easy to generate an assembly gap between the energy cabin frame 20 and the beam 10 in the width direction of the vehicle body.

[0108] Please refer to Figure 1 and Figure 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 passes through the connecting portion 101 and the positioning portion 201 along the first direction Z.

[0109] The beam 10 is provided with a connecting portion 101 extending along the second direction X, that is, the connecting portion 101 extends toward the energy cabin frame 20 to facilitate connection with the positioning portion 201. Figure 4 As shown, two spaced connecting parts 101 are provided on the front compartment 11 and the rear compartment 12 in the beam frame 10. It can be understood that the number of the connecting parts 101 can also be one or other numbers. The connecting part 101 can be box-shaped, frame-shaped, flat-plate-shaped, etc., or can be irregularly shaped.

[0110] In some embodiments, the connecting portion 101 is disposed on the side of the beam frame 10 along the third direction Y. In other embodiments, the connecting portion 101 may also be disposed in the middle of the beam frame 10 along the third direction Y. It can be understood that the positioning portion 201 is disposed corresponding to the connecting portion 101.

[0111] 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 .

[0112] Please refer to Figures 4 to 8 In some embodiments, the surfaces where the positioning portion 201 and the connecting portion 101 abut against each other are both planes.

[0113] 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.

[0114] In other embodiments, the surfaces where the positioning portion 201 and the connecting portion 101 abut against each other may also be non-planar. For example, a protrusion is provided on the surface of the positioning portion 201 facing the connecting portion 101, and a recess matching the protrusion is provided on the surface of the connecting portion 101 facing the positioning portion 201. In this way, the protrusion and the recess can play a positioning role, and the remaining areas of the positioning portion 201 and the connecting portion 101 can still remain in contact.

[0115] In some embodiments, at least two connecting portions 101 are provided on the beam frame 10, wherein the two connecting portions 101 are spaced apart along a third direction Y, and the third direction Y is perpendicular to the first direction Z and the second direction X; at least two positioning portions 201 are provided on the energy cabin frame 20, wherein the two positioning portions 201 are spaced apart along the third direction Y, and the connecting portions 101 are connected one-to-one with the positioning portions 201.

[0116] Specifically, the beam frame 10 includes a front compartment 11 and a rear compartment 12, and at least one of the front compartment 11 and the rear compartment 12 is provided with two connection parts 101 spaced apart along the third direction Y, and each connection part 101 extends toward the energy compartment frame 20 along the second direction X. Two positioning parts 201 are respectively provided at both ends of the energy compartment frame 20 along the second direction X, and the connection parts 101 are connected to the positioning parts 201 in a one-to-one correspondence. The third direction Y can be the width direction of the vehicle body.

[0117] 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.

[0118] like Figure 6 and Figure 7 As shown, in some embodiments, the positioning portion 201 is provided at the corner of the energy cabin frame 20. The energy cabin frame 20 includes a frame 21, a mounting plate 22 provided in the frame 21, and a connecting block 23 provided at the corner of the frame 21, wherein the mounting plate 22 is used to connect a plurality of battery cells; the corner of the frame 21 and the connecting block 23 together form the positioning portion 201, and 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.

[0119] 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.

[0120] The energy cabin frame 20 includes a frame 21, a mounting plate 22 disposed in 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 in the frame 21 and is used to fix and 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 is arranged opposite to the mounting plate 22 along the first direction Z. The battery cells are arranged between the bottom plate 25 and the mounting plate 22.

[0121] The connection block 23 may be an L-shaped block structure so as to be fixed to the corner of the frame 21 ; the connection block 23 is disposed on a side of the mounting plate 22 away from the battery.

[0122] 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 planar, which facilitates the positioning portion 201 to fit the connecting portion 101 .

[0123] 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. Figure 6 As shown, the frame 21 and the connecting block 23 are respectively provided with first connecting holes 202 , so that the frame 21 and the connecting block 23 can be fixedly connected to the beam frame 10 through the first fastener 31 .

[0124] 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 easy to cause interference to the battery cells.

[0125] Please refer to Figure 2 , Figure 5 , Fig. 9 and Fig.10 In some embodiments, a supporting portion 102 is further provided on the beam frame 10, and 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.

[0126] Optionally, the abutting portion 102 is disposed on the front cabin 11; it is understandable that the abutting portion 102 may also be disposed on the rear cabin 12. The abutting portion 102 and the energy cabin frame 20 are both disposed 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 disposed below the connecting portion 101.

[0127] Since the beam frame 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 frame 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 frame 10 and the energy cabin frame 20 in the second direction X.

[0128] In some embodiments, the vehicle body 100 further includes a second fastener 40 , and the second fastener 40 is disposed along the second direction X through the supporting portion 102 and the energy cabin frame 20 .

[0129] 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 arranged along the second direction X through the abutting portion 102 and the energy cabin frame 20. In this way, the second fastener 40 can fix 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 better. When the vehicle encounters a collision, the connection between the beam frame 10 and the energy cabin frame 20 is not easy to be lifted and deformed.

[0130] When assembling the front cabin 11 and the energy cabin frame 20, first drop one end of the front cabin 11 onto the energy cabin frame 20, so that the abutting portion 102 abuts against the energy cabin frame 20, and the second fastener 40 is passed through the abutting portion 102 and the energy cabin frame 20 along the second direction X, so that it is not easy to generate an installation gap in the second direction X; then, 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 connection method of the above-mentioned vehicle body 100 is mainly in the first direction Z, and the second direction X is supplementary, which further improves the assembly accuracy.

[0131] Please refer to Figure 6 , Figure 7 and Fig.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.

[0132] In some embodiments, a space for the first fastener 31 and the second fastener 40 to pass through is provided in the first beam body 211 or the second beam body 212, and the first fastener 31 and the second fastener 40 do not pass through the first beam body 211, so the first fastener 31 and the second fastener 40 will not extend into the accommodation space of the energy cabin frame 20. For example, a space for the first fastener 31 and the second fastener 40 to pass through is provided in the first beam body 211 near the front cabin 11, and a space for the second fastener 40 to pass through is provided in the second beam body 212 near the rear cabin 12.

[0133] By adopting the above technical solution, the connection structure 30 and the second fastener 40 will not enter the accommodating 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.

[0134] Please refer to Figures 1 to 4In 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 relatively 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.

[0135] 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 travel direction of the vehicle body, and the front cabin 11 and the rear cabin 12 can both be installed with suspension.

[0136] 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.

[0137] The vehicle body 100 provided in the embodiment of the present application is a three-section structure, which can meet 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.

[0138] In some embodiments, the abutting portion 102 is disposed at one end of the front cabin 11 close to the energy cabin frame 20 ; and / or, the abutting portion 102 is disposed at one end of the rear cabin 12 close to the energy cabin frame 20 .

[0139] like Figure 4 and Figure 5 As shown, in some embodiments, the abutment portion 102 is disposed at one end of the front cabin 11 close to the energy cabin frame 20, and the second fastener 40 connects the abutment portion 102 and the energy cabin frame 20. In this way, when the front of the vehicle collides, the connection between the front cabin 11 and the energy cabin frame 20 is not prone to warping and deformation.

[0140] It is understandable 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.

[0141] Please refer to Figure 1 and Figure 5In some embodiments, the front cabin 11 further 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.

[0142] The upper longitudinal beam 111 is arranged above the lower longitudinal beam 112, and 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, and 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 abutting portion 102 is connected to one end of the lower longitudinal beam 112 close to the energy cabin frame 20, so that the connecting portion 101 is arranged above the abutting portion 102.

[0143] 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.

[0144] 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.

[0145] Optionally, energy absorption boxes may be provided on both the upper longitudinal beam 111 and the lower longitudinal beam 112 .

[0146] The front cabin 11 provided in the embodiment of the present application has an upper and lower two-layer 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 realize that the connecting portion 101 falls on the upper part of the energy cabin frame 20 along the first direction Z, but also realize that the supporting portion 102 abuts against the side of the energy cabin frame 20 along the second direction X. The structure of the above-mentioned front cabin 11 is relatively ingenious and practical, and the connecting portion 101 and the supporting portion 102 do not interfere with each other.

[0147] like Fig.10 As shown, 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.

[0148] 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.

[0149] Please refer to Figure 4 , Figure 8 , Fig.11 and Fig.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 , and a connecting portion 101 is provided on the rear longitudinal beams 121 ; the connecting portion 101 on the rear longitudinal beams 121 is fixedly connected to the energy cabin frame 20 through a connecting structure 30 .

[0150] Optionally, both rear longitudinal beams 121 are provided with a connection portion 101, and each connection portion 101 is fixedly connected to the energy cabin frame 20 by a first fastener 31. Optionally, the first fastener 31 is passed through the connection portion 101 and the first beam body 211 of the energy cabin frame 20. Optionally, each connection portion 101 is fixedly connected to the energy cabin frame 20 by a plurality of first fasteners 31, and the plurality of first fasteners can be spaced apart along the second direction X to improve the connection strength and structural stability.

[0151] 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 , thereby reducing the space occupied by the connecting portion 101 on the width of the rear cabin 12 .

[0152] 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, and the third fastener 50 is passed through the rear cross beam 122 and the mounting beam 24 along the first direction Z.

[0153] The third fastener 50 may be a bolt or other connecting member. The third fastener 50 may be in multiple numbers, and the multiple third fasteners 50 are distributed along the mounting beam 24 at intervals.

[0154] 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.

[0155] In some embodiments, the beam frame 10 and the energy cabin frame 20 are both made of steel.

[0156] Specifically, the front cabin 11, the rear cabin 12 and the energy cabin frame 20 are all made of steel, that is, they are made of steel. In some cases, the material of the partial structure of the beam frame 10 and / or the energy cabin frame 20 is aluminum, and electrochemical corrosion problems will occur when the vehicle body is combined with the steel upper body. For this reason, the steel-aluminum connection area needs to be specially processed, which increases the cost of a single vehicle.

[0157] 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, and the connection between the vehicle body 100 and the upper vehicle body are not prone to electrochemical corrosion, thereby reducing manufacturing costs.

[0158] In some embodiments, at least one of the beam 10 and the energy chamber frame 20 comprises a rolled part.

[0159] Please refer to Figures 1 to 12 The beam frame 10 and the energy cabin frame 20 are both steel parts, 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.

[0160] 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.

[0161] In some embodiments, the vehicle body 100 includes a beam frame 10, an energy cabin frame 20, and a connection 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 arranged opposite to each other along a second direction X, and a positioning portion 201 is provided on both the first end 203 and the second end 204; the front cabin 11 abuts against the positioning portion 201 on the first end 203 along a first direction Z, and the rear cabin 12 abuts against the positioning portion 201 on the second end 204 along the second direction X. The connection structure 30 includes a first fastener 31 arranged along the first direction Z, the front cabin 11 is fixedly connected to the positioning portion 201 on the first end 203 by the first fastener 31, and the rear cabin 12 is fixedly connected to the positioning portion 201 on the second end 204 by the second fastener 40.

[0162] 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 arranged along the second direction X.

[0163] 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 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 between the rear cabin 12 and the energy cabin frame 20 and the connection method of the connecting structure 30 are the same, and it is not easy to produce assembly gaps, thereby improving the dimensional accuracy and assembly accuracy of the vehicle body 100.

[0164] 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, wherein an 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.

[0165] 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 in parallel.

[0166] The vehicle body provided in the embodiment of the present application includes a vehicle body 100 and a battery cell, and 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 through 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; and 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 through 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.

[0167] Please refer to Figures 1 to 13 The third aspect of the present application provides a vehicle body assembly method, comprising:

[0168] Step S1: fix the battery cells to the energy cabin frame 20 to assemble the energy cabin.

[0169] 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.

[0170] In some embodiments, multiple battery cells can be directly fixed on the energy cabin frame 20 to be used as batteries, without first assembling the battery cells into a battery pack and then fixing the battery pack on the energy cabin frame 20. It is understood that in other embodiments, multiple battery cells can also be assembled into a battery module and then the battery module can be fixedly connected to the energy cabin frame 20.

[0171] In some embodiments, the battery cells are first bonded to the mounting plate 22 of the energy cabin frame 20 by means of colloid, and then the bottom plate 25 is fixedly connected to the energy cabin frame 20. At this time, the battery cells are located in the accommodation space surrounded by the frame 21, the mounting plate 22 and the bottom plate 25. By firstly fixing the battery cells to the energy cabin frame 20, the operating space required for assembling the energy cabin is smaller, and the assembly is more convenient.

[0172] Step S2: The beam frame 10 is brought into contact with the end of the energy cabin frame 20 along the first direction Z.

[0173] The beam frame 10 can be directly dropped on the end of the energy cabin frame 20 to support and fit the beam frame 10 to the energy cabin frame 20. The beam frame 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.

[0174] Step S3: using the connection structure 30 to fix the energy cabin frame 20 and the beam frame 10 along the first direction Z.

[0175] 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 .

[0176] The vehicle body assembly method provided in the embodiment of the present application first fixes the battery cell to the energy cabin frame 20 to form an energy cabin, and then connects the energy cabin to the beam frame 10, which improves 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, which improves 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, that is, the battery cell is integrated into the vehicle body (Chasis). Compared with 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 need to flip the entire vehicle body to install the battery cell, requires less operating space, and improves the convenience of assembling the battery.

[0177] An embodiment of a fourth aspect of the present application provides a vehicle, comprising a vehicle body as provided in the first aspect.

[0178] Fig.14 A simplified schematic diagram of a vehicle provided for some embodiments of the present application. Fig.14 As shown, 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 be used 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 working power requirements of the vehicle 1 during starting, navigation, and driving. In some embodiments of the present application, the battery 200 can not only be used as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0179] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or 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 protection scope 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, 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, 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 claim 7, 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 claim 7, 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 claim 10, 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 claim 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 a vehicle body as claimed in any one of claims 1-17.

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