Side beam structure, chassis and vehicle

Abstract

A side beam structure (10) includes a first main structure (100) and a second main structure (200) formed by extending in a first direction. The first main structure (100) is located on one side of the second main structure (200) in a second direction and is fixedly connected to the second main structure (200). The first main structure (100) encloses a sealed first accommodation cavity (110). The second main structure (200) is used to connect a front torque box (21) and a rear torque box (22). The first main structure (100) and the second main structure (200) are integrally provided. By fixedly connecting the first main structure and the second main structure, the side beam structure can not only achieve the sealing of battery monomers, but also ensure the load transfer from the front torque box to the rear torque box, improving the integration degree of the internal structure of the vehicle.

Description

Technical Field

[0001] The present application relates to a side beam structure, a chassis and a vehicle. Background Art

[0002] With the development of society and the improvement of people's living standards, vehicles have become a basic consumer good and are also developing in the direction of intelligence, safety and personalization.

[0003] In the related art, the internal structure of the vehicle is scattered, and the correlation between the structures is low, resulting in a complex internal structure of the vehicle and a low integration degree. Summary of the Invention

[0004] Embodiments of the present application provide a side beam structure, a chassis and a vehicle, aiming to improve the problem of low integration degree of the internal structure of the vehicle.

[0005] In a first aspect, the present application provides a side beam structure, including a first main structure and a second main structure extending and formed along a first direction. The first main structure is located on one side of the second main structure in a second direction and is fixedly connected to the second main structure. The first main structure encloses a closed first accommodation cavity. The second main structure is used to connect a front torsion box and a rear torsion box, and the first direction and the second direction intersect.

[0006] In the technical solutions of some embodiments of the present application, the first main structure encloses a closed first accommodation cavity, that is, the first main structure is a closed structure and has no connection with the external environment, and can be used to seal battery cells, so that the battery cells have better sealing performance and improve the service life of the battery cells. The second main structure is connected to the front torsion box and the rear torsion box, so that when the vehicle collides, the load transfer from the front torsion box to the rear torsion box can be ensured, and the reliability of the vehicle is improved. By fixedly connecting the first main structure and the second main structure, the side beam structure can not only seal the battery cells, but also ensure the load transfer from the front torsion box to the rear torsion box, with a simple structure and an improved integration degree of the internal structure of the vehicle.

[0007] In some embodiments, the first main structure includes a first strengthening portion disposed in the first accommodation cavity. The first strengthening portion divides the first accommodation cavity into a first sub-accommodation cavity and a second sub-accommodation cavity that are spaced apart in a third direction, and the third direction intersects both the first direction and the second direction.

[0008] The first accommodation cavity formed by enclosing the first main body structure is used to set the first strengthening part. On the one hand, the first strengthening part can improve the structural strength of the first main body structure. On the other hand, the first strengthening part divides the first accommodation cavity into a first sub-accommodation cavity and a second sub-accommodation cavity that are not connected to each other. When one of the first sub-accommodation cavity and the second sub-accommodation cavity is connected to other structures by punching, the infiltrated water vapor will not enter the other, so as to improve the sealing performance and service life of the first main body structure.

[0009] In some embodiments, the first main body structure includes a sealing structure, and the sealing structure is located on both sides of the first accommodation cavity in the first direction for sealing the first accommodation cavity.

[0010] By arranging the sealing structure on both sides of the first accommodation cavity in the first direction, the first accommodation cavity forms a closed structure, reducing the possibility of water vapor entering the first accommodation cavity, ensuring the sealing performance of the first accommodation cavity, so as to improve the sealing performance of the first main body structure for the battery cell.

[0011] In some embodiments, the first main body structure includes a first side plate, a first top plate and a first bottom plate, and the first top plate and the first bottom plate are oppositely arranged in the third direction; the second main body structure includes a second side plate close to the first main body structure, the first side plate and the second side plate are oppositely arranged in the second direction, and the first top plate and the first bottom plate are both connected to the first side plate and the second side plate. Among them, the second side plate extends out of both sides of the first main body structure in the first direction, and / or the second side plate extends out of the first main body structure in the third direction.

[0012] The first side plate, the first top plate, the first bottom plate of the first main body structure and the second side plate of the second main body structure enclose to form a first accommodation cavity for setting the strengthening part. The second side plate extends out of both sides of the first main body structure in the first direction, so that the extending parts of the second side plate on both sides of the first main body structure in the first direction can be respectively connected to the front torsion box and the rear torsion box, ensuring that the load can be transmitted from the front torsion box to the rear torsion box through this side beam structure and improving the reliability of this side beam structure. The second side plate extends out of the first main body structure in the third direction, so that both ends of the extending part of the second side plate in the third direction in the first direction can be respectively connected to the front torsion box and the rear torsion box, ensuring that the load can be transmitted from the front torsion box to the rear torsion box through this side beam structure.

[0013] In some embodiments, the second side plate is provided with a first through hole and a second through hole. The first through hole is located on one side of the second side plate in the first direction, and the second through hole is located on the other side of the second side plate in the second direction. Both the first through hole and the second through hole are located on the part where the second side plate extends out of the first main body structure.

[0014] The first through-hole is located on one side of the second side plate in the first direction and in the part where the second side plate extends out of the first main structure, so that the second side plate can be connected to the front torque box through the first through-hole. The second through-hole is located on the other side of the second side plate in the first direction and in the part where the second side plate extends out of the first main structure, so that the second side plate can be connected to the rear torque box through the second through-hole. The second side plate can be connected to the front torque box and the rear torque box through the first through-hole and the second through-hole respectively, ensuring that the load can be transmitted from the front torque box to the rear torque box through this side beam structure. In some embodiments, the second side plate can be connected to the rear torque box through the first through-hole and connected to the front torque box through the second through-hole.

[0015] In some embodiments, the second main structure encloses to form a second accommodation cavity. The second main structure includes a second strengthening part disposed in the second accommodation cavity, and the second strengthening part divides the second accommodation cavity into a third sub-accommodation cavity and a fourth sub-accommodation cavity that are spaced apart in the third direction.

[0016] The second accommodation cavity formed by enclosing the second main structure is used to dispose the second strengthening part. On the one hand, the second strengthening part can improve the structural strength of the second main structure. On the other hand, the second strengthening part divides the second accommodation cavity into a non-communicating third sub-accommodation cavity and a fourth sub-accommodation cavity, reducing the mutual influence between the third sub-accommodation cavity and the fourth sub-accommodation cavity, and improving the reliability of the second main structure.

[0017] In some embodiments, the third sub-accommodation cavity is located on the side of the fourth sub-accommodation cavity facing the connection surface of the second main structure for connecting to the vehicle body, and a third strengthening part is disposed in the third sub-accommodation cavity.

[0018] The third strengthening part is located in the third sub-accommodation cavity, which can further improve the structural strength of the second main structure. The third sub-accommodation cavity is located on the side of the fourth sub-accommodation cavity facing the connection surface of the second main structure for connecting to the vehicle body, that is, the third strengthening part is disposed close to the vehicle body, so that the part of the second main structure close to the vehicle body has better structural strength, can better support the vehicle body, and improves the reliability of the connection between the second main structure and the vehicle body.

[0019] In some embodiments, it further includes a third main structure extending and formed along the first direction. The third main structure is located on the side of the second main structure away from the first main structure in the second direction, and the third main structure and the second main structure are integrally provided.

[0020] The third main structure is disposed on the side of the second main structure away from the first main structure. Since the first main structure is used to seal the battery cell, the first main structure is located inside the vehicle, while the third main structure is located outside the second main structure, used to resist the impact from the side, and is adapted to the vehicle body structure, so as to support the vehicle body.

[0021] In some embodiments, the first main body structure and the second main body structure are integrally provided. The integral provision of the first main body structure and the second main body structure enables the first main body structure and the second main body structure to be integrally die-cast, improving the overall structural strength and thus enhancing the reliability of the side beam structure.

[0022] In a second aspect, the present application provides a chassis, including a frame structure. The frame structure includes the side beam structure in the above embodiments, an upper cover plate and a bottom guard plate oppositely arranged in a third direction. The side beam structure is detachably connected to the upper cover plate and the bottom guard plate. The frame structure encloses a receiving space for receiving battery cells.

[0023] The upper cover plate and the bottom guard plate oppositely arranged in the third direction provide a certain degree of protection for the battery cells, and the bottom guard plate can also support the battery cells. The side beam structure, the upper cover plate, the bottom guard plate and other structures are interconnected, enabling the frame structure to enclose a receiving space as a whole. The battery cells can be arranged in the receiving space to achieve sealed protection for the battery cells. The side beam structure is detachably connected to the upper cover plate and the bottom guard plate. When the side beam structure is damaged or fails, the side beam structure can be replaced, reducing the maintenance cost. Since the side beam structure in the frame structure is a closed structure, the closed side beam structure can further enhance the sealing performance of the frame structure to extend the service life of the battery cells.

[0024] In some embodiments, the second main body structure extends out of the first main body structure. First through holes and second through holes are respectively provided on two sides of the second main body structure in a first direction. Both the first through holes and the second through holes are located in the part where the second main body structure extends out of the first main body structure. The chassis further includes a front torque box and a rear torque box oppositely arranged in the first direction. The front torque box is connected to the first through holes, and the rear torque box is connected to the second through holes.

[0025] In some embodiments, the bottom guard plate includes a support plate, a side plate and a connecting plate. The support plate is located on one side of the upper cover plate in the third direction. The side plate extends obliquely away from the receiving space in the third direction and is formed integrally. The side plate is connected between the support plate and the connecting plate. The connecting plate is detachably connected to the first main body structure.

[0026] The support plate of the bottom guard plate is used to support the battery cells. The side plate is used to connect the support plate and the connection plate. The connection plate is close to the first main structure and is detachably connected to the first main structure, realizing the connection between the bottom guard plate and the first main structure. The side plate is inclined and extended in a direction away from the accommodation space in the third direction. On the one hand, the side plate is arranged away from the accommodation space, ensuring that the accommodation space has sufficient size to accommodate the battery cells and making there be enough distance between the battery cells and the side plate to improve the damage of the side plate to the battery cells caused by the too close distance between the side plate and the battery cells. On the other hand, the side plate is inclined and arranged away from the accommodation space in the third direction, making the connection positions between the side plate and the support plate and between the side plate and the connection plate all obtuse angles. When the side beam structure is subjected to a large compressive stress, the side plate undergoes a certain amount of sinking deformation. However, due to the large angle at the connection position, the fracture probability at the connection position is reduced, improving the reliability of the bottom guard plate. And the side plate is extended and formed in the third direction, making the connection plate be arranged higher than the support plate in the third direction. At this time, a certain yielding space is formed on the side of the connection plate away from the first main structure in the third direction, and this yielding space can be used to arrange other components or wire routing.

[0027] Thirdly, the present application proposes a vehicle, including the chassis in the above-mentioned embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0029] Figure 1 Structural schematic diagram of a vehicle provided by some embodiments of the present application;

[0030] Figure 2 Structural schematic diagram of a side beam structure provided by some embodiments of the present application;

[0031] Figure 3 For Figure 2 Enlarged schematic diagram of area A shown;

[0032] Figure 4 Side view schematic diagram of a side beam structure in another embodiment;

[0033] Figure 5 For Figure 4 Enlarged schematic diagram of area B shown;

[0034] Figure 6 For Figure 1 Enlarged schematic diagram of the side beam structure in

[0035] The reference numerals in the specific embodiments are as follows:

[0036] 10, side beam structure; 20, vehicle; 21, front torsion box; 22, rear torsion box; 23, battery cell

[0037] 100, first main structure; 101, first side plate; 102, first top plate; 103, first bottom plate; 110, first accommodation cavity; 111, first sub-accommodation cavity; 112, second sub-accommodation cavity; 120, first strengthening part; 130, sealing structure

[0038] 200, second main structure; 201, second side plate; 202, first through hole; 203, second through hole; 210, second accommodation cavity; 211, third sub-accommodation cavity; 212, fourth sub-accommodation cavity; 220, second strengthening part; 230, third strengthening part

[0039] 300, third main structure; 310, third accommodation cavity

[0040] 400, upper cover plate

[0041] 500, bottom guard plate; 510, support plate; 520, side plate; 530, connecting plate

[0042] 600, accommodation space

[0043] X, first direction; Y, second direction; Z, third direction.

[0044] In the drawings, the drawings are not drawn to actual scale. Specific embodiments

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application 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 drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order or primary-secondary relationship.

[0047] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", and "attached" 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 direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] The term "and / or" in this application is only a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0050] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0051] In the description of the embodiments of this application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0052] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0053] With the development of society and the improvement of people's living standards, vehicles have become a basic consumer good and are also developing in the direction of intelligence, safety, and personalization. Electric vehicles have emerged as the times require and the demand is increasing day by day. With the widespread use of electric vehicles, the design and use requirements for battery cells are also getting higher and higher.

[0054] In the related art, the battery cell is disposed on the vehicle chassis, and the sealing of the battery cell depends on the frame structure located on the vehicle chassis. The frame structure includes side beam structures, and the side beam structure is an important part for realizing the sealing of the battery cell. The vehicle body is provided with a separate sill structure, and the side beam structure for sealing the battery cell and the sill structure of the vehicle body are not related, resulting in a complex internal structure of the vehicle body and low integration.

[0055] To solve the above problems, the side beam structure for sealing the battery cell can be combined with the sill structure, that is, an integrated side beam structure that can be used for sealing the battery cell and realizing the sill function is designed to simplify the internal structure of the vehicle and improve the integration of the internal structure of the vehicle.

[0056] The side beam structure disclosed in the embodiments of the present application can be but is not limited to being used in devices such as vehicles, ships, or aircraft. Devices or equipment with the side beam structure disclosed in the embodiments of the present application can be used, which is beneficial to simplifying the internal structure and improving the integration.

[0057] For the convenience of description, the following embodiments will take a side beam structure for a vehicle in an embodiment of the present application as an example for description.

[0058] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a vehicle provided in some embodiments of the present application.

[0059] The vehicle 20 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, a range-extended vehicle, etc. A battery cell 23 is disposed inside the vehicle 20, and the battery cell 23 can be disposed at the bottom, the head, or the tail of the vehicle 20. The battery cell 23 can be used for power supply of the vehicle 20. For example, the battery cell 23 can serve as the operating power source of the vehicle 20. The vehicle 20 can further include a controller and a motor. The controller is used to control the battery to supply power to the motor. For example, it is used for the working power requirements during the start, navigation, and driving of the vehicle 20.

[0060] In some embodiments of the present application, the battery cell 23 can not only serve as the operating power source of the vehicle 20, but also serve as the driving power source of the vehicle 20, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 20.

[0061] In some embodiments of the present application, there can be multiple battery cells 23. The multiple battery cells 23 can be connected in series, in parallel, or in a series-parallel combination. A series-parallel combination means that there are both series and parallel connections among the multiple battery cells 23. The multiple battery cells 23 can be directly connected in series, in parallel, or in a series-parallel combination together, and then the whole formed by the multiple battery cells 23 is accommodated in a box body; of course, it can also be that the multiple battery cells 23 are first connected in series, in parallel, or in a series-parallel combination to form a battery module form, and then the multiple battery modules are connected in series, in parallel, or in a series-parallel combination to form a whole and are accommodated in a box body.

[0062] Among them, each battery cell 23 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 23 can be in a cylindrical shape, a flat shape, a cuboid shape, or other shapes, etc.

[0063] Please refer to Figures 1 to 3 , Figure 2 which is a schematic structural diagram of a side beam structure provided in some embodiments of the present application; Figure 3 is Figure 2 an enlarged schematic diagram of area A shown in

[0064] As Figures 1 to 3 shown, according to some embodiments of the present application, the present application provides a side beam structure 10. The side beam structure 10 includes a first main structure 100 and a second main structure 200 that are formed by extending along a first direction X. The first main structure 100 is located on one side of the second main structure 200 in a second direction Y and is fixedly connected to the second main structure 200. The first main structure 100 encloses a closed first accommodation cavity 110. The second main structure 200 is used to connect a front torsion box 21 and a rear torsion box 22. The first direction X and the second direction Y intersect.

[0065] As shown in the figure, in the figure, the X direction is the first direction of the side beam structure 10, the Y direction is the second direction of the side beam structure 10, and the Z direction is the third direction of the side beam structure 10.

[0066] "Extending and forming along the first direction X" means that all parts of the structure are continuous and unbroken in the first direction X. The first main structure 100 encloses a closed first accommodation cavity 110, indicating that the first main structure 100 is an integral sealed structure 130, with no connection to the outside world and having good sealing performance.

[0067] "The front torsion box 21 and the rear torsion box 22" are important components of the power system of the vehicle 20. They are generally located at the chassis position of the vehicle 20 and are correspondingly arranged at the front cabin position and the rear cabin position of the vehicle body. The torsion box is usually connected between the cross beam, the longitudinal beam or the sill beam. Its function is to bear the load generated when the vehicle 20 is collided and enable the load to be transmitted between beam structures such as the cross beam and the longitudinal beam, improving the structural reliability of the vehicle 20.

[0068] The dimensional relationship between the first main structure 100 and the second main structure 200 can be various. For example, the extension length of the first main structure 100 in the first direction X is less than that of the second main structure 200, or the extension length of the first main structure 100 in the first direction X can also be greater than or equal to that of the second main structure 200. The same is true for the dimensional relationship between the first main structure 100 and the second main structure 200 in the third direction Z. The dimensional relationship between the first main structure 100 and the second main structure 200 can be determined according to actual needs.

[0069] The positional relationship between the first main structure 100 and the second main structure 200 can be various. For example, at least one side of the first main structure 100 is aligned with the second main structure 200, or the second main structure 200 extends out of the first main structure 100 in both the first direction X and the third direction Z.

[0070] In the technical solutions of some embodiments of the present application, the first main structure 100 encloses a closed first accommodation cavity 110, that is, the first main structure 100 is a closed structure, with no connection to the external environment, and can be used to seal the battery cell 23, enabling the battery cell 23 to have better sealing performance and improving the service life of the battery cell 23. The second main structure 200 is connected to the front torsion box 21 and the rear torsion box 22, so that when the vehicle 20 collides, the load transmission from the front torsion box 21 to the rear torsion box 22 can be ensured, improving the reliability of the vehicle 20. The side beam structure 10 fixes and connects the first main structure 100 and the second main structure 200, which can not only realize the sealing of the battery cell 23, but also ensure the load transmission from the front torsion box 21 to the rear torsion box 22, with a simple structure and improved integration of the internal structure of the vehicle 20.

[0071] In some embodiments, please continue to refer to Figure 1 , the first main body structure 100 includes a first reinforcing portion 120 disposed in the first accommodating cavity 110. The first reinforcing portion 120 divides the first accommodating cavity 110 into a first sub-accommodating cavity 111 and a second sub-accommodating cavity 112 that are spaced apart in the third direction Z. The third direction Z intersects both the first direction X and the second direction Y.

[0072] Optionally, the first reinforcing portion 120 can also divide the first accommodating cavity 110 into a first sub-accommodating cavity 111 and a second sub-accommodating cavity 112 that are spaced apart in the second direction Y.

[0073] The first accommodating cavity 110 enclosed by the first main body structure 100 is used to dispose the first reinforcing portion 120. On the one hand, the first reinforcing portion 120 can improve the structural strength of the first main body structure 100. On the other hand, the first reinforcing portion 120 divides the first accommodating cavity 110 into a non-communicating first sub-accommodating cavity 111 and a second sub-accommodating cavity 112. When one of the first sub-accommodating cavity 111 and the second sub-accommodating cavity 112 is connected by punching to other structures, the infiltrated water vapor will not enter the other, so as to improve the sealing performance and service life of the first main body structure 100.

[0074] Please refer to Figure 4 and Figure 5 , Figure 4 is a side view schematic diagram of the side beam structure in another embodiment; Figure 5 is Figure 4 an enlarged schematic diagram of the B area shown in

[0075] As Figure 4 and Figure 5 shown, in some embodiments, the first main body structure 100 includes a sealing structure 130. The sealing structure 130 is located on both sides of the first accommodating cavity 110 in the first direction X and is used to seal the first accommodating cavity 110.

[0076] Optionally, the sealing structure 130 is welded to the first main body structure 100 to improve the sealing performance of the first main body structure 100.

[0077] Optionally, the sealing structure 130 includes a sealing plate or a sealing plug.

[0078] By providing the sealing structure 130 on both sides of the first accommodating cavity 110 in the first direction X, the first accommodating cavity 110 forms a closed structure, reducing the possibility of water vapor entering the first accommodating cavity 110, ensuring the sealing of the first accommodating cavity 110, so as to improve the sealing performance of the first main body structure 100 for the battery cell 23.

[0079] In some embodiments, a first through-hole 202 and a second through-hole 203 are provided on the second side plate 201. The first through-hole 202 is located on one side of the second side plate 201 in the first direction X, and the second through-hole 203 is located on the other side of the second side plate 201 in the second direction Y. Both the first through-hole 202 and the second through-hole 203 are located on the part of the second side plate 201 that extends out of the first main structure 100.

[0080] Optionally, there are multiple first through-holes 202, and / or multiple second through-holes 203. The multiple first through-holes 202 and second through-holes 203 can better connect with the front torsion box 21 and the rear torsion box 22, improving the structural stability.

[0081] The first through-hole 202 is located on one side of the second side plate 201 in the first direction X and on the part of the second side plate 201 that extends out of the first main structure 100, so that the second side plate 201 can be connected to the front torsion box 21 through the first through-hole 202. The second through-hole 203 is located on the other side of the second side plate 201 in the first direction X and on the part of the second side plate 201 that extends out of the first main structure 100, so that the second side plate 201 can be connected to the rear torsion box 22 through the second through-hole 203. The second side plate 201 can be respectively connected to the front torsion box 21 and the rear torsion box 22 through the first through-hole 202 and the second through-hole 203, ensuring that the front torsion box 21 to the rear torsion box 22 can transfer loads through this side beam structure 10. In some embodiments, the second side plate 201 can be connected to the rear torsion box 22 through the first through-hole 202 and connected to the front torsion box 21 through the second through-hole 203.

[0082] Please refer to Figure 6 , Figure 6 for Figure 1 the enlarged schematic diagram of the middle side beam structure.

[0083] As Figure 6 shown, in some embodiments, the first main structure 100 includes a first side plate 101, a first top plate 102, and a first bottom plate 103. The first top plate 102 and the first bottom plate 103 are oppositely arranged in the third direction Z; the second main structure 200 includes a second side plate 201 close to the first main structure 100. The first side plate 101 and the second side plate 201 are oppositely arranged in the second direction Y. Both the first top plate 102 and the first bottom plate 103 are connected to the first side plate 101 and the second side plate 201. Among them, the second side plate 201 extends out of both sides of the first main structure 100 in the first direction X, and / or the second side plate 201 extends out of the first main structure 100 in the third direction Z.

[0084] "The first top plate 102 and the first bottom plate 103 are oppositely arranged in the third direction Z" means that the first top plate 102 and the first bottom plate 103 are arranged parallel to each other or at a certain angle, but they do not intersect.

[0085] The statement that "the second side plate 201 extends out of both sides of the first main structure 100 in the first direction X" means that there are partial structures of the second side plate 201 extending out of the edges of both sides of the first main structure 100 in the first direction X.

[0086] The statement that "the second side plate 201 extends out of the first main structure 100 in the third direction Z" means that there is a partial structure of the second side plate 201 extending out of the edge of the first main structure 100 in the third direction Z. It can be that one side of the second side plate 201 extends out of the first main structure 100 in the third direction Z, or both sides of the second side plate 201 extend out of the first main structure 100 in the third direction Z.

[0087] The first side plate 101, the first top plate 102, the first bottom plate 103 of the first main structure 100 and the second side plate 201 of the second main structure 200 enclose to form a first accommodation cavity 110 for arranging a first strengthening part 120. The second side plate 201 extends out of both sides of the first main structure 100 in the first direction X, so that the extending parts of the second side plate 201 on both sides of the first main structure 100 in the first direction X can be respectively connected to the front torsion box 21 and the rear torsion box 22, ensuring that the load can be transmitted from the front torsion box 21 to the rear torsion box 22 through the side beam structure 10 and improving the reliability of the side beam structure 10. The second side plate 201 extends out of the first main structure 100 in the third direction Z, so that both ends of the extending part of the second side plate 201 in the third direction Z in the first direction X can be respectively connected to the front torsion box 21 and the rear torsion box 22, ensuring that the load can be transmitted from the front torsion box 21 to the rear torsion box 22 through the side beam structure 10.

[0088] Such as Figure 6 As shown, in some embodiments, the second main structure 200 encloses to form a second accommodation cavity 210. The second main structure 200 includes a second strengthening part 220 arranged in the second accommodation cavity 210. The second strengthening part 220 divides the second accommodation cavity 210 into a third sub-accommodation cavity 211 and a fourth sub-accommodation cavity 212 that are spaced apart in the third direction Z.

[0089] Optionally, the second strengthening part 220 can also divide the second accommodation cavity 210 into a third sub-accommodation cavity 211 and a fourth sub-accommodation cavity 212 that are spaced apart in the second direction Y.

[0090] The second accommodation cavity 210 formed by enclosing the second main body structure 200 is used to set the second strengthening part 220. On the one hand, the second strengthening part 220 can improve the structural strength of the second main body structure 200. On the other hand, the second strengthening part 220 divides the second accommodation cavity 210 into a non-communicating third sub-accommodation cavity 211 and a fourth sub-accommodation cavity 212, reducing the mutual influence between the third sub-accommodation cavity 211 and the fourth sub-accommodation cavity 212, and improving the reliability of the second main body structure 200.

[0091] In some embodiments, the third sub-accommodation cavity 211 is located on one side of the fourth sub-accommodation cavity 212 facing the connection surface of the second main body structure 200 for connecting to the vehicle body, and the third sub-accommodation cavity 211 is provided with a third strengthening part 230.

[0092] Optionally, the second main body structure 200 is connected to the vehicle body by bolts.

[0093] The third strengthening part 230 is located in the third sub-accommodation cavity 211, which can further improve the structural strength of the second main body structure 200. The third sub-accommodation cavity 211 is located on one side of the fourth sub-accommodation cavity 212 facing the connection surface of the second main body structure 200 for connecting to the vehicle body, that is, the third strengthening part 230 is arranged close to the vehicle body, so that the part of the second main body structure 200 close to the vehicle body has better structural strength, can better support the vehicle body, and improves the reliability of the connection between the second main body structure 200 and the vehicle body.

[0094] In some embodiments, it further includes a third main body structure 300 extending and formed along the first direction X. The third main body structure 300 is located on the side of the second main body structure 200 away from the first main body structure 100 in the second direction Y, and the third main body structure 300 and the second main body structure 200 are integrally arranged.

[0095] Optionally, the third main body structure 300 encloses to form a third accommodation cavity 310. In the actual application process, other strengthening parts can be set in the third accommodation cavity 310 as needed to further improve the structural strength of the third main body structure 300.

[0096] Optionally, the third main body structure 300 is connected to the vehicle body by bolts.

[0097] The third main body structure 300 is arranged on the side of the second main body structure 200 away from the first main body structure 100. Since the first main body structure 100 is used to seal the battery cell 23, the first main body structure 100 is located inside the vehicle 20, while the third main body structure 300 is located outside the second main body structure 200, used to resist the impact from the side and adapt to the vehicle body structure, so as to support the vehicle body.

[0098] In some embodiments, the first main body structure 100 and the second main body structure 200 are integrally arranged.

[0099] The integrated setting of the first main body structure 100 and the second main body structure 200 means that when the first main body structure 100 and the second main body structure 200 are manufactured, the first main body structure 100 and the second main body structure 200 are integrated into the same structure and stamped, that is, two parts connected by the same side beam structure 10.

[0100] By integrally setting the first main body structure 100 and the second main body structure 200, the side beam structure 10 can not only seal the battery cell 23, but also ensure the load transfer from the front torque box 21 to the rear torque box 22. The structure is simple, and the integration degree of the internal structure of the vehicle 20 is improved. Moreover, the integrated setting of the first main body structure 100 and the second main body structure 200 enables the first main body structure 100 and the second main body structure 200 to be integrally stamped, improving the overall structural strength and thus enhancing the reliability of the side beam structure 10.

[0101] According to some embodiments of the present application, the present application also provides a chassis, including a frame structure. The frame structure includes the side beam structure 10 in the above embodiments, an upper cover plate 400 and a bottom guard plate 500 oppositely arranged in the third direction Z. The side beam structure 10 is detachably connected to the upper cover plate 400 and the bottom guard plate 500, and the frame structure encloses to form an accommodation space 600 for accommodating the battery cell 23.

[0102] The side beam structure 10 is usually arranged as two or more in the chassis, and two side beam structures 10 are oppositely arranged in the second direction Y.

[0103] Optionally, the frame structure further includes a front cross beam and a rear cross beam oppositely arranged in the first direction X. The front cross beam, the rear cross beam, the upper cover plate 400, the bottom guard plate 500 and the two oppositely arranged side beam structures 10 together enclose to form the accommodation space 600.

[0104] Optionally, the first top plate 102 of the first main body structure 100 is bolted to the upper cover plate 400. After the first main body structure 100 is drilled for bolt connection, it is necessary to perform a sealing treatment at the connection between the first main body structure 100 and the upper cover plate 400, such as applying a sealant.

[0105] Optionally, the first bottom plate 103 of the first main body structure 100 is bolted to the bottom guard plate 500. After the first main body structure 100 is drilled for bolt connection, it is necessary to perform a sealing treatment at the connection between the first main body structure 100 and the bottom guard plate 500, such as applying a sealant.

[0106] The upper cover plate 400 and the bottom protection plate 500 oppositely arranged in the third direction Z have a certain protective effect on the battery cell 23, and the bottom protection plate 500 can also support the battery cell 23. The side beam structure 10 is connected to various structures such as the upper cover plate 400 and the bottom protection plate 500, so that the overall frame structure encloses to form an accommodation space 600, and the battery cell 23 can be arranged in the accommodation space 600 to realize sealed protection of the battery cell 23. The side beam structure 10, the upper cover plate 400, and the bottom protection plate 500 are all detachably connected. When the side beam structure 10 is damaged or fails, the side beam structure 10 can be replaced to reduce the maintenance cost. Since the side beam structure 10 in the frame structure is a closed structure, the closed side beam structure 10 can further improve the sealing performance of the frame structure to increase the service life of the battery cell 23.

[0107] In some embodiments, the second main body structure 200 extends out of the first main body structure 100. The second main body structure 200 is respectively provided with a first through hole 202 and a second through hole 203 on both sides in the first direction X. Both the first through hole 202 and the second through hole 203 are located in the part where the second main body structure 200 extends out of the first main body structure 100. The chassis further includes a front torsion box 21 and a rear torsion box 22 oppositely arranged in the first direction X. The front torsion box 21 is connected to the first through hole 202, and the rear torsion box 22 is connected to the second through hole 203.

[0108] In some embodiments, the bottom protection plate 500 includes a support plate 510, a side plate 520, and a connecting plate 530. The support plate 510 is located on one side of the upper cover plate 400 in the third direction Z. The side plate 520 extends obliquely in the direction away from the accommodation space 600 in the third direction Z. The side plate 520 is connected between the support plate 510 and the connecting plate 530. The connecting plate 530 is detachably connected to the first main body structure 100.

[0109] The support plate 510 of the bottom guard plate 500 is used to support the battery cell 23. The side plate 520 is used to connect the support plate 510 and the connection plate 530. The connection plate 530 is close to the first main structure 100 and is detachably connected to the first main structure 100, realizing the connection between the bottom guard plate 500 and the first main structure 100. The side plate 520 is inclined and extended in the third direction Z away from the accommodation space 600. On the one hand, the side plate 520 is arranged away from the accommodation space 600, ensuring that the accommodation space 600 has sufficient dimensions to accommodate the battery cell 23 and providing a sufficient distance between the battery cell 23 and the side plate 520 to improve the damage of the side plate 520 to the battery cell 23 caused by the too-close distance between the side plate 520 and the battery cell 23. On the other hand, the side plate 520 is inclined away from the accommodation space 600 in the third direction Z, making the connection positions between the side plate 520 and the support plate 510, and between the side plate 520 and the connection plate 530 all obtuse angles. When the side beam structure 10 is subjected to a large compressive stress, the side plate 520 undergoes a certain amount of sinking deformation. However, due to the large angle at the connection position, the fracture probability at the connection position is reduced, improving the reliability of the bottom guard plate 500. Moreover, the side plate 520 is extended and formed in the third direction Z, making the connection plate 530 higher than the support plate 510 in the third direction Z. At this time, a certain accommodation space is formed on the side of the connection plate 530 away from the first main structure 100 in the third direction Z, and this accommodation space can be used to arrange other components or for wiring.

[0110] According to some embodiments of the present application, the present application also provides a vehicle 20, including the chassis in the above embodiments.

[0111] According to some embodiments of the present application, the present application provides a side beam structure 10. The side beam structure 10 includes a first main structure 100, a second main structure 200, and a third main structure 300 that are formed by extending in the first direction X. The first main structure 100 is located on one side of the second main structure 200 in the second direction Y. The third main structure 300 is located on the side of the second main structure 200 away from the first main structure 100 in the second direction Y. The third main structure 300 and the second main structure 200 are integrally provided. The first main structure 100 encloses a sealed first accommodation cavity 110. The first main structure 100 includes a first strengthening portion 120 and a sealing structure 130 disposed in the first accommodation cavity 110. The first strengthening portion 120 divides the first accommodation cavity 110 into a first sub-accommodation cavity 111 and a second sub-accommodation cavity 112 that are spaced apart in the third direction Z. The sealing structure 130 is located on both sides of the first accommodation cavity 110 in the first direction X and is used to seal the first accommodation cavity 110. The first main structure 100 is used to seal the battery cell 23. The second main structure 200 is connected to the front torque box 21 and the rear torque box 22 through a first through hole 202 and a second through hole 203 respectively. The first main structure 100 and the second main structure 200 are integrally provided. Among them, the second side plate 201 extends out of both sides of the first main structure 100 in the first direction X, and the second side plate 201 extends out of the first main structure 100 in the third direction Z.

[0112] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0113] Finally, it should be noted that 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A side beam structure for a vehicle, characterized in that, It includes a first main body structure and a second main body structure extending along a first direction. The first main body structure is located on one side of the second main body structure in a second direction and is fixedly connected to the second main body structure. The first main body structure encloses a sealed first accommodation cavity. The second main body structure is used to connect a front torsion box and a rear torsion box. The first direction and the second direction intersect; The second main body structure includes a second side plate close to the first main body structure, wherein the second side plate is arranged to extend out of both sides of the first main body structure in the first direction, and / or the second side plate is arranged to extend out of the first main body structure in a third direction. The third direction intersects both the first direction and the second direction; A first through hole and a second through hole are arranged on the second side plate. The first through hole is used to connect the front torsion box, and the second through hole is used to connect the rear torsion box.

2. The side beam structure according to claim 1, characterized in that, The first main body structure includes a first strengthening part arranged in the first accommodation cavity. The first strengthening part divides the first accommodation cavity into a first sub-accommodation cavity and a second sub-accommodation cavity that are spaced apart in the third direction.

3. The side beam structure according to claim 1 or 2, characterized in that, The first main body structure includes a sealing structure. The sealing structure is located on both sides of the first accommodation cavity in the first direction and is used to seal the first accommodation cavity.

4. The side beam structure according to claim 1, characterized in that, The first main body structure includes a first side plate, a first top plate and a first bottom plate. The first top plate and the first bottom plate are arranged opposite to each other in the third direction; the first side plate and the second side plate are arranged opposite to each other in the second direction. The first top plate and the first bottom plate are both connected to the first side plate and the second side plate.

5. The side beam structure according to claim 1, characterized in that, The first through hole is located on one side of the second side plate in the first direction, and the second through hole is located on the other side of the second side plate in the second direction. Both the first through hole and the second through hole are located on the part where the second side plate extends out of the first main body structure.

6. The side beam structure according to claim 1, characterized in that, The second main body structure encloses a second accommodation cavity. The second main body structure includes a second strengthening part arranged in the second accommodation cavity. The second strengthening part divides the second accommodation cavity into a third sub-accommodation cavity and a fourth sub-accommodation cavity that are spaced apart in the third direction.

7. The side beam structure according to claim 6, wherein, The third sub-accommodation cavity is located on one side of the fourth sub-accommodation cavity facing the connection surface of the second main body structure for connecting to the vehicle body. The third sub-accommodation cavity is provided with a third strengthening part.

8. The side beam structure according to claim 1, characterized in that, It further includes a third main body structure extending and formed along the first direction. The third main body structure is located on the side of the second main body structure away from the first main body structure in the second direction. The third main body structure and the second main body structure are integrally arranged.

9. The side beam structure according to claim 1, characterized in that, The first main body structure and the second main body structure are integrally arranged.

10. A chassis for a vehicle, characterized in that, It includes: A frame structure, including the side beam structure according to any one of claims 1-9 above, an upper cover plate and a bottom guard plate arranged opposite to each other in the third direction. The side beam structure is detachably connected to the upper cover plate and the bottom guard plate. The frame structure encloses an accommodation space for accommodating battery cells.

11. The chassis according to claim 10, characterized in that, The second main body structure extends out of the first main body structure, and the second main body structure is respectively provided with a first through hole and a second through hole on both sides in the first direction. Both the first through hole and the second through hole are located in the part where the second main body structure extends out of the first main body structure. The chassis further includes a front torsion box and a rear torsion box which are oppositely arranged in the first direction. The front torsion box is connected to the first through hole, and the rear torsion box is connected to the second through hole.

12. The chassis according to any one of claims 10 or 11, characterized in that, The bottom guard plate includes a support plate, a side plate and a connecting plate. The support plate is located on one side of the upper cover plate in the third direction. The side plate extends obliquely in a direction away from the accommodation space in the third direction. The side plate is connected between the support plate and the connecting plate, and the connecting plate is detachably connected to the first main body structure.

13. A vehicle, comprising the chassis according to any one of claims 10 - 12.

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