WO2024221165A1 - Side beam structure, chassis and vehicle - Google Patents

Abstract

A side beam structure (10), comprising a first main body structure (100) and a second main body structure (200) which extend in a first direction, so as to be formed, wherein the first main body structure (100) is located on a side of the second main body structure (200) in a second direction and is fixedly connected to the second main body structure (200); the first main body structure (100) encloses to form a closed first accommodating cavity (110); the second main body structure (200) is configured to connect a front torsion box (21) and a rear torsion box (22); and the first main body structure (100) and the second main body structure (200) are integrally arranged. In the side beam structure, the first main body structure and the second main body structure are fixedly connected, such that battery cells can be sealed, and load transmission from the front torsion box to the rear torsion box can also be ensured, thereby increasing level of integration of an internal structure of a vehicle.

Description

Side member structures, chassis and vehicles Technical Field

The present application relates to a side beam structure, a chassis and a vehicle.

Background Art

With the development of society and the improvement of people's living standards, vehicles have become a basic consumer product and are also moving towards intelligence, safety and personalization.

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 low integration.

Summary of the invention

The embodiments of the present application provide a side beam structure, a chassis and a vehicle, aiming to improve the problem of low integration of the internal structure of the vehicle.

In the first aspect, the present application proposes a side beam structure, including a first main body structure and a second main body structure extended and formed along a first direction, the first main body structure is located on one side of the second main body structure in the second direction and is fixedly connected to the second main body structure, the first main body structure encloses a first closed accommodating cavity, and the second main body structure is used to connect the front torsion box and the rear torsion box, and the first direction and the second direction intersect.

In the technical solutions of some embodiments of the present application, the first main structure encloses to form a closed first accommodating cavity, that is, the first main structure is a closed structure, which is not connected to the external environment and can be used to seal the battery cell, so that the battery cell has better sealing performance and improves the service life of the battery cell. 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 guaranteed, thereby improving the reliability of the vehicle. The side beam structure can not only achieve the sealing of the battery cell, but also ensure the load transfer from the front torsion box to the rear torsion box by fixedly connecting the first main structure and the second main structure. The structure is simple and improves the integration of the internal structure of the vehicle.

In some embodiments, the first main structure includes a first reinforcement portion arranged in the first accommodating cavity, the first reinforcement portion divides the first accommodating cavity into a first sub-accommodating cavity and a second sub-accommodating cavity spaced apart in a third direction, and the third direction intersects with both the first direction and the second direction.

The first receiving cavity formed by the first main structure is used to set the first reinforcement part. On the one hand, the first reinforcement part can improve the structural strength of the first main structure. On the other hand, the first reinforcement part divides the first receiving cavity into a first sub-receiving cavity and a second sub-receiving cavity that are not connected to each other. When one of the first sub-receiving cavity and the second sub-receiving cavity is connected to the other structure 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 structure.

In some embodiments, the first main body structure includes a sealing structure, which is located on both sides of the first accommodating cavity in the first direction and is used to seal the first accommodating cavity.

By arranging sealing structures on both sides of the first accommodating cavity in the first direction, the first accommodating cavity forms a closed structure, reducing the possibility of water vapor entering the first accommodating cavity, ensuring the sealing of the first accommodating cavity, and improving the sealing performance of the first main structure to the battery cell.

In some embodiments, the first main structure includes a first side panel, a first top panel and a first bottom panel, and the first top panel and the first bottom panel are arranged opposite to each other in a third direction; the second main structure includes a second side panel close to the first main structure, and the first side panel and the second side panel are arranged opposite to each other in the second direction, and the first top panel and the first bottom panel are both connected to the first side panel and the second side panel, wherein the second side panel extends out of both sides of the first main structure in the first direction, and/or the second side panel extends out of the first main structure in the third direction.

The first side plate, the first top plate, the first bottom plate of the first main structure and the second side plate of the second main structure are enclosed to form a first accommodating cavity for setting a reinforcement portion. The second side plate is arranged to extend out of the two sides of the first main structure in the first direction, so that the extended parts of the second side plate on both sides of the first main structure in the first direction can be connected to the front torsion box and the rear torsion box respectively, ensuring that the load from the front torsion box to the rear torsion box can be transferred through the side beam structure, thereby improving the reliability of the side beam structure. The second side plate is arranged to extend out of the first main structure in the third direction, so that the two ends of the extended part of the second side plate in the third direction in the first direction can be connected to the front torsion box and the rear torsion box respectively, ensuring that the load from the front torsion box to the rear torsion box can be transferred through the side beam structure.

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 one side of the second side plate in the second direction. On the other side of the second side plate, the first through hole and the second through hole are both located at a portion of the second side plate extending out of the first main structure.

The first through hole is located on one side of the second side plate in the first direction and on the portion of the second side plate extending out of the first main structure, so that the second side plate can be connected to the front torsion 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 on the portion of the second side plate extending out of the first main structure, so that the second side plate can be connected to the rear torsion box through the second through hole. The second side plate can be connected to the front torsion box and the rear torsion box respectively through the first through hole and the second through hole, ensuring that the load can be transferred from the front torsion box to the rear torsion box through the side beam structure. In some embodiments, the second side plate can be connected to the rear torsion box through the first through hole and to the front torsion box through the second through hole.

In some embodiments, the second main structure encloses a second accommodating cavity, and the second main structure includes a second reinforcement portion disposed in the second accommodating cavity, and the second reinforcement portion divides the second accommodating cavity into a third sub-accommodating cavity and a fourth sub-accommodating cavity spaced apart in a third direction.

The second accommodating cavity formed by the second main structure is used to set the second reinforcement part. On the one hand, the second reinforcement part can improve the structural strength of the second main structure. On the other hand, the second reinforcement part divides the second accommodating cavity into a third sub-accommodating cavity and a fourth sub-accommodating cavity that are not connected to each other, thereby reducing the mutual influence between the third sub-accommodating cavity and the fourth sub-accommodating cavity and improving the reliability of the second main structure.

In some embodiments, the third sub-accommodating cavity is located on a side of the fourth sub-accommodating cavity facing a connection surface of the second main structure for connecting to the vehicle body, and the third sub-accommodating cavity is provided with a third reinforcement portion.

The third reinforcement part is located in the third sub-accommodation cavity, which can further improve the structural strength of the second main body 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 body structure for connecting the vehicle body, that is, the third reinforcement part is arranged close to the vehicle body, so that the part of the second main body structure close to the vehicle body has better structural strength, can better support the vehicle body, and improve the reliability of the connection between the second main body structure and the vehicle body.

In some embodiments, it also includes a third main body structure extending along the first direction, the third main body structure is located on a side of the second main body structure away from the first main body structure in the second direction, and the third main body structure and the second main body structure are integrally arranged.

The third main structure is arranged on a side of the second main structure away from the first main structure. Since the first main structure is used to seal the battery cells, the first main structure is located on the inside of the vehicle, and the third main structure is located on the outside of the second main structure to resist impact from the side and adapt to the body structure to support the body.

In some embodiments, the first main body structure and the second main body structure are integrally arranged, so that the first main body structure and the second main body structure are integrally die-casted, thereby improving the overall structural strength and thus improving the reliability of the side beam structure.

On the second aspect, the present application proposes a chassis, including a frame structure, the frame structure includes the side beam structure in the above embodiment, and an upper cover plate and a bottom guard plate arranged relatively in a third direction, the side beam structure and the upper cover plate and the bottom guard plate are all detachably connected, and the frame structure encloses a storage space for accommodating battery cells.

The upper cover plate and the bottom guard plate arranged relatively to each other in the third direction have a certain protective effect on the battery cells, and the bottom guard plate can also support the battery cells. The side beam structure and the upper cover plate, the bottom guard plate and other structures are connected to each other, so that the frame structure as a whole encloses a storage space, and the battery cells can be arranged in the storage space to achieve sealed protection for the battery cells. The side beam structure and the upper cover plate and the bottom guard plate can be detachably connected. When the side beam structure is damaged or fails, the side beam structure can be replaced to reduce maintenance costs. Since the side beam structure in the frame structure is a closed structure, the closed side beam structure can further improve the sealing of the frame structure to increase the service life of the battery cells.

In some embodiments, the second main body structure extends out from the first main body structure, and the second main body structure is provided with a first through hole and a second through hole on both sides in the first direction, and the first through hole and the second through hole are both located in the portion where the second main body structure extends out of the first main body structure, and the chassis also includes a front torque box and a rear torque box arranged opposite to each other in the first direction, the front torque box is connected to the first through hole, and the rear torque box is connected to the second through hole.

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 is formed by being inclined and extending in the third direction away from the accommodating space. The side plate is connected between the support plate and the connecting plate. The connecting plate and the first main structure are detachably connected.

The support plate of the bottom guard plate is used to support the battery cell. 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 to achieve the connection between the bottom guard plate and the first main structure. The side plate is formed by extending and tilting in the third direction away from the accommodating space. On the one hand, the side plate is arranged away from the accommodating space to ensure that the accommodating space has a sufficient size to accommodate the battery cell and that there is a sufficient distance between the battery cell and the side plate to improve the side plate from damaging the battery cell due to the side plate being too close to the battery cell. On the other hand, The side panels are tilted away from the accommodation space in the third direction, so that the connection positions between the side panels and the support panels, and between the side panels and the connection panels are all obtuse angles. When the side beam structure is subjected to a large compressive stress, the side panels sink and deform to a certain extent, but due to the large angle of the connection position, the probability of fracture at the connection position is reduced, thereby improving the reliability of the bottom guard plate. The side panels are extended and formed in the third direction, so that the connection panels are arranged higher than the support panels in the third direction. At this time, a certain clearance space is formed on the side of the connection panel away from the first main structure in the third direction, and the clearance space can be used to set other components or routing.

In a third aspect, the present application proposes a vehicle, comprising the chassis in the above-mentioned embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use 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 ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

FIG2 is a schematic structural diagram of a side beam structure provided in some embodiments of the present application;

FIG3 is an enlarged schematic diagram of the A region shown in FIG2 ;

FIG4 is a schematic side view of a side beam structure in another embodiment;

FIG5 is an enlarged schematic diagram of the B region shown in FIG4 ;

FIG. 6 is an enlarged schematic diagram of the side beam structure in FIG. 1 .

The reference numerals in the specific implementation manner are as follows:
10. Side beam structure; 20. Vehicle; 21. Front torque box; 22. Rear torque box; 23.
Battery cells;
100, first main body structure; 101, first side plate; 102, first top plate; 103, first bottom plate; 110, first accommodating cavity; 111, first sub-accommodating cavity; 112, second sub-accommodating cavity; 120, first reinforcement part; 130, sealing structure;
200, second main body 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 reinforcement portion; 230, third reinforcement portion;
300. third main body structure; 310. third accommodating cavity;
400, upper cover;
500, bottom guard plate; 510, support plate; 520, side plate; 530, connecting plate;
600, Accommodation Space;
X, first direction; Y, second direction; Z, third direction.

In the drawings, the figures are not drawn to scale.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution 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 part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; 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" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places 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.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

The term "and/or" in this application is only a description of the association relationship of associated objects, indicating that there can 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 application generally indicates that the associated objects before and after are in an "or" relationship.

In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

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).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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, and therefore should not be understood as a limitation on the embodiments of the present application.

With the development of society and the improvement of people's living standards, vehicles have become a basic consumer product, and are also developing in the direction of intelligence, safety and personalization. Electric vehicles have emerged and the demand is growing. With the widespread use of electric vehicles, people's demand for the design and use of battery cells is also increasing.

In the related art, the battery cells are arranged on the vehicle chassis, and the sealing of the battery cells relies on the frame structure located on the vehicle chassis, which includes the side beam structure, and the side beam structure is an important component for achieving the sealing of the battery cells. The vehicle body is provided with a separate threshold structure, and the side beam structure used to seal the battery cells is not related to the threshold structure of the vehicle body, which makes the internal structure of the vehicle body complex and the integration is low.

In order to solve the above problems, the side beam structure used to seal the battery cell can be combined with the threshold structure, that is, a structure that can be used to seal the battery cell and realize the threshold function can be designed. The integrated side beam structure simplifies the vehicle's internal structure and improves its integration.

The side beam structure disclosed in the embodiment of the present application can be used in, but not limited to, vehicles, ships, aircraft, etc. Devices or equipment with the side beam structure disclosed in the embodiment of the present application can be used, which is conducive to simplifying the internal structure and improving the integration.

For the convenience of description, the following embodiments are described by taking a side beam structure for a vehicle according to an embodiment of the present application as an example.

Please refer to FIG. 1 , which is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.

The vehicle 20 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended range vehicle. A battery cell 23 is provided inside the vehicle 20. The battery cell 23 may be provided at the bottom, head or tail of the vehicle 20. The battery cell 23 may be used to power the vehicle 20. For example, the battery cell 23 may be used as an operating power source for the vehicle 20. The vehicle 20 may also include a controller and a motor. The controller is used to control the battery to power the motor, for example, to meet the power requirements for starting, navigating and driving the vehicle 20.

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 .

In some embodiments of the present application, there may be multiple battery cells 23, and the multiple battery cells 23 may be connected in series, in parallel, or in a mixed connection. The mixed connection means that the multiple battery cells 23 are both connected in series and in parallel. The multiple battery cells 23 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 23 is accommodated in the box; of course, the multiple battery cells 23 may be first connected in series, in parallel, or in a mixed connection to form a battery module, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box.

Each battery cell 23 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 23 may be cylindrical, flat, rectangular, or in other shapes.

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

As shown in FIG. 1 to FIG. 3 , 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 body structure 100 extending along a first direction X. and the second main body structure 200, the first main body structure 100 is located on one side of the second main body structure 200 in the second direction Y and is fixedly connected to the second main body structure 200, the first main body structure 100 encloses to form a closed first accommodating cavity 110, the second main body structure 200 is used to connect the front torque box 21 and the rear torque box 22, and the first direction X and the second direction Y intersect.

As shown in the figure, the X direction in the figure 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 .

“Extended and formed 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 and forms a sealed first accommodating cavity 110, which means that the first main structure 100 as a whole is a whole sealing structure 130, which has no connection with the outside world and has good sealing performance.

The "front torque box 21 and rear torque box 22" are important components of the power system of the vehicle 20, which are generally located at the chassis of the vehicle 20 and are correspondingly arranged at the front and rear compartments of the vehicle body. The torque box is usually connected between the cross beam, the longitudinal beam or the threshold beam. Its function is to bear the load generated when the vehicle 20 is hit and to enable the load to be transferred between beam structures such as the cross beam and the longitudinal beam, thereby improving the structural reliability of the vehicle 20.

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 dimensional relationship between the first main structure 100 and the second main structure 200 in the third direction Z is similar. The dimensional relationship between the first main structure 100 and the second main structure 200 can be determined according to actual needs.

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.

In the technical solutions of some embodiments of the present application, the first main body structure 100 encloses and forms a sealed first accommodating cavity 110, that is, the first main body structure 100 is a sealed structure, which is not connected to the external environment and can be used to seal the battery cell 23, so that the battery cell 23 has a better sealing performance and improves the service life of the battery cell 23. The second main body structure 200 is connected to the front torque box 21 and the rear torque box 21. The torque box 22 ensures that the load transfer from the front torque box 21 to the rear torque box 22 is ensured when the vehicle 20 collides, thereby improving the reliability of the vehicle 20. The side beam structure 10 can achieve the sealing of the battery cell 23 and ensure the load transfer from the front torque box 21 to the rear torque box 22 by fixedly connecting the first main body structure 100 and the second main body structure 200. The structure is simple and the integration of the internal structure of the vehicle 20 is improved.

In some embodiments, please continue to refer to Figure 1. The first main structure 100 includes a first reinforcement portion 120 arranged in the first accommodating cavity 110, and the first reinforcement 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 a third direction Z. The third direction Z intersects with the first direction X and the second direction Y.

Optionally, the first reinforcing portion 120 may further 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.

The first housing cavity 110 formed by the first main body structure 100 is used to set the first reinforcement part 120. On the one hand, the first reinforcement part 120 can improve the structural strength of the first main body structure 100. On the other hand, the first reinforcement part 120 divides the first housing cavity 110 into a first sub-housing cavity 111 and a second sub-housing cavity 112 that are not connected to each other. When one of the first sub-housing cavity 111 and the second sub-housing cavity 112 is connected to the other structure 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 100.

Please refer to FIG. 4 and FIG. 5 , FIG. 4 is a schematic side view of a side beam structure in another embodiment; FIG. 5 is an enlarged schematic view of the B area shown in FIG. 4 .

As shown in FIG. 4 and FIG. 5 , in some embodiments, the first main 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 .

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

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

By arranging sealing structures 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 and ensuring the sealing of the first accommodating cavity 110, so as to improve the sealing performance of the first main structure 100 to the battery cell 23.

In some embodiments, a first through hole 202 and a second through hole 203 are provided on the second side panel 201, the first through hole 202 is located on one side of the second side panel 201 in the first direction X, the second through hole 203 is located on the other side of the second side panel 201 in the second direction Y, and the first through hole 202 and the second through hole 203 are both located in the portion of the second side panel 201 extending out of the first main structure 100.

Optionally, there are multiple first through holes 202 and/or multiple second through holes 203. Multiple first through holes 202 and second through holes 203 can be better connected to the front torque box 21 and the rear torque box 22 to improve structural stability.

The first through hole 202 is located at one side of the second side plate 201 in the first direction X and at the portion of the second side plate 201 extending out of the first main structure 100, so that the second side plate 201 can be connected to the front torque box 21 through the first through hole 202. The second through hole 203 is located at the other side of the second side plate 201 in the first direction X and at the portion of the second side plate 201 extending out of the first main structure 100, so that the second side plate 201 can be connected to the rear torque box 22 through the second through hole 203. The second side plate 201 can be connected to the front torque box 21 and the rear torque box 22 through the first through hole 202 and the second through hole 203, respectively, to ensure that the load can be transferred from the front torque box 21 to the rear torque box 22 through the side beam structure 10. In some embodiments, the second side plate 201 can be connected to the rear torque box 22 through the first through hole 202, and connected to the front torque box 21 through the second through hole 203.

Please also refer to FIG. 6 , which is an enlarged schematic diagram of the side beam structure in FIG. 1 .

As shown in Figure 6, in some embodiments, the first main structure 100 includes a first side panel 101, a first top panel 102 and a first bottom panel 103, and the first top panel 102 and the first bottom panel 103 are arranged relative to each other in a third direction Z; the second main structure 200 includes a second side panel 201 close to the first main structure 100, the first side panel 101 and the second side panel 201 are arranged relative to each other in a second direction Y, and the first top panel 102 and the first bottom panel 103 are both connected to the first side panel 101 and the second side panel 201, wherein the second side panel 201 extends out of both sides of the first main structure 100 in the first direction X, and/or the second side panel 201 extends out of the first main structure 100 in the third direction Z.

“The first top plate 102 and the first bottom plate 103 are arranged opposite to each other 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 the two do not intersect.

“The second side plate 201 extends out of the first main structure 100 on both sides in the first direction X” means that part of the structure of the second side plate 201 on both sides in the first direction X extends out of the first main structure 100 is arranged at the edges on both sides in the first direction X.

“The second side panel 201 extends out of the first main structure 100 in the third direction Z” means that part of the structure of the second side panel 201 in the third direction Z exceeds the edge of the first main structure 100 in the third direction Z. It can be that one side of the second side panel 201 in the third direction Z extends out of the first main structure 100, or that both sides of the second side panel 201 in the third direction Z extend out of the first main structure 100.

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 are enclosed to form a first accommodating cavity 110 for setting the first reinforcement part 120. The second side plate 201 is arranged to extend from both sides of the first main structure 100 in the first direction X, so that the extended parts of the second side plate 201 on both sides of the first main structure 100 in the first direction X can be connected to the front torque box 21 and the rear torque box 22 respectively, ensuring that the load from the front torque box 21 to the rear torque box 22 can be transferred through the side beam structure 10, thereby improving the reliability of the side beam structure 10. The second side plate 201 is arranged to extend from the first main structure 100 in the third direction Z, so that the two ends of the extended part of the second side plate 201 in the third direction Z in the first direction X can be connected to the front torque box 21 and the rear torque box 22 respectively, ensuring that the load from the front torque box 21 to the rear torque box 22 can be transferred through the side beam structure 10.

As shown in Figure 6, in some embodiments, the second main body structure 200 encloses a second accommodating cavity 210, and the second main body structure 200 includes a second reinforcement portion 220 arranged in the second accommodating cavity 210, and the second reinforcement portion 220 divides the second accommodating cavity 210 into a third sub-accommodating cavity 211 and a fourth sub-accommodating cavity 212 that are spaced apart and distributed in a third direction Z.

Optionally, the second reinforcing portion 220 may further divide the second accommodating cavity 210 into a third sub-accommodating cavity 211 and a fourth sub-accommodating cavity 212 which are spaced apart in the second direction Y.

The second accommodating cavity 210 formed by the second main structure 200 is used to set the second reinforcing part 220. On the one hand, the second reinforcing part 220 can improve the structural strength of the second main structure 200. On the other hand, the second reinforcing part 220 divides the second accommodating cavity 210 into a third sub-accommodating cavity 211 and a fourth sub-accommodating cavity 212 that are not connected to each other, thereby reducing the mutual influence between the third sub-accommodating cavity 211 and the fourth sub-accommodating cavity 212 and improving the reliability of the second main structure 200.

In some embodiments, the third sub-accommodation cavity 211 is located on the side of the fourth sub-accommodation cavity 212 facing the connection surface of the second main structure 200 for connecting to the vehicle body, and the third sub-accommodation cavity 211 is provided with The third reinforcement portion 230 .

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

The third reinforcing portion 230 is located in the third sub-accommodating cavity 211, which can further improve the structural strength of the second main body structure 200. The third sub-accommodating cavity 211 is located on the side of the fourth sub-accommodating cavity 212 facing the connecting surface of the second main body structure 200 for connecting the vehicle body, that is, the third reinforcing portion 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 improve the reliability of the connection between the second main body structure 200 and the vehicle body.

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

Optionally, the third main structure 300 encloses a third accommodating cavity 310. In actual application, other reinforcement parts may be provided in the third accommodating cavity 310 as required to further improve the structural strength of the third main structure 300.

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

The third main body structure 300 is arranged on a 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 on the inner side of the vehicle 20, and the third main body structure 300 is located on the outer side of the second main body structure 200, and is used to resist impact from the side and adapt to the body structure to support the body.

In some embodiments, the first main body structure 100 and the second main body structure 200 are integrally provided.

The first main structure 100 and the second main structure 200 are integrally arranged, which means that when the first main structure 100 and the second main structure 200 are manufactured, the first main structure 100 and the second main structure 200 are integrated into the same structure and stamped, that is, they are two parts connected to each other by the same side beam structure 10.

The side beam structure 10 can achieve the sealing of the battery cell 23 and ensure the load transfer from the front torsion box 21 to the rear torsion box 22 by integrating the first main body structure 100 and the second main body structure 200. The structure is simple and the integration of the internal structure of the vehicle 20 is improved. The first main body structure 100 and the second main body structure 200 are integrated so that the first main body structure 100 and the second main body structure 200 are integrally formed by stamping, thereby improving the overall structural strength and thus improving the reliability of the side beam structure 10.

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 embodiment, an upper cover plate 400 and a bottom guard plate 500 relatively arranged in a third direction Z, the side beam structure 10 and the upper cover plate 400, and the bottom guard plate 500 can all be detachably connected, and the frame structure encloses a accommodating space 600 for accommodating a battery cell 23.

Two or more side beam structures 10 are usually provided in the chassis, and the two side beam structures 10 are arranged opposite to each other in the second direction Y.

Optionally, the frame structure further includes a front crossbeam and a rear crossbeam that are arranged opposite to each other in the first direction X. The front crossbeam, the rear crossbeam, the upper cover plate 400 , the bottom guard plate 500 and the two oppositely arranged side beam structures 10 together enclose a receiving space 600 .

Optionally, the first top plate 102 of the first main structure 100 is connected to the upper cover plate 400 by bolts. After the first main structure 100 is punched and connected by bolts, it is necessary to perform sealing treatment at the connection between the first main structure 100 and the upper cover plate 400, such as coating sealant.

Optionally, the first bottom plate 103 of the first main structure 100 is connected to the bottom guard plate 500 by bolts. After the first main structure 100 is punched and bolted, it is necessary to perform sealing treatment at the connection between the first main structure 100 and the bottom guard plate 500, such as coating sealant.

The upper cover plate 400 and the bottom guard plate 500 arranged relatively to each other in the third direction Z have a certain protective effect on the battery cell 23, and the bottom guard plate 500 can also support the battery cell 23. The side beam structure 10 and the upper cover plate 400, the bottom guard plate 500 and other structures are connected to each other, so that the frame structure as a whole encloses a receiving space 600, and the battery cell 23 can be arranged in the receiving space 600 to achieve sealed protection for the battery cell 23. The side beam structure 10 and the upper cover plate 400 and the bottom guard plate 500 can all be detachably connected. When the side beam structure 10 is damaged or fails, the side beam structure 10 can be replaced to reduce maintenance costs. 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 of the frame structure to increase the service life of the battery cell 23.

In some embodiments, the second main body structure 200 is arranged to extend from the first main body structure 100, and the second main body structure 200 is provided with a first through hole 202 and a second through hole 203 on both sides in the first direction X. The first through hole 202 and the second through hole 203 are both located in the portion where the second main body structure 200 extends out of the first main body structure 100. The chassis also includes a front torque box 21 and a rear torque box 22 that are arranged relative to each other in the first direction X. The front torque box 21 is connected to the first through hole 202, and the rear torque box 22 is connected to the second through hole 203.

In some embodiments, the bottom guard 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 is formed by being inclined and extending in the direction away from the accommodating 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 and the first main structure 100 are detachably connected.

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 connecting plate 530. The connecting plate 530 is close to the first main structure 100 and is detachably connected to the first main structure 100 to achieve the connection between the bottom guard plate 500 and the first main structure 100. The side plate 520 is formed by extending and tilting in a direction away from the accommodating space 600 in the third direction Z. On the one hand, the side plate 520 is arranged away from the accommodating space 600 to ensure that the accommodating space 600 has a sufficient size to accommodate the battery cell 23, and that there is a sufficient distance between the battery cell 23 and the side plate 520, so as to improve the side plate 520 from damaging the battery cell 23 due to the side plate 520 being too close to the battery cell 23. On the other hand, the side plate 520 is tilted away from the accommodation space 600 in the third direction Z, so that the connection positions between the side plate 520 and the support plate 510, and between the side plate 520 and the connecting plate 530 are all obtuse angles. When the side beam structure 10 is subjected to a large compressive stress, the side plate 520 sinks and deforms to a certain extent, but due to the large angle of the connection position, the probability of fracture at the connection position is reduced, and the reliability of the bottom guard plate 500 is improved. In addition, the side plate 520 is extended and formed in the third direction Z, so that the connecting plate 530 is arranged higher than the supporting plate 510 in the third direction Z. At this time, a certain clearance space is formed on the side of the connecting plate 530 away from the first main structure 100 in the third direction Z, and the clearance space can be used to set other components or routing.

According to some embodiments of the present application, the present application also provides a vehicle 20, comprising the chassis in the above embodiments.

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

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

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 it. 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, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (13)

A side beam structure for a vehicle comprises a first main body structure and a second main body structure extending along a first direction, wherein the first main body structure is located on one side of the second main body structure in the second direction and is fixedly connected to the second main body structure, the first main body structure encloses a first closed accommodating cavity, the second main body structure is used to connect a front torsion box and a rear torsion box, and the first direction and the second direction intersect. The side beam structure according to claim 1, wherein the first main structure includes a first reinforcement portion arranged in the first accommodating cavity, the first reinforcement portion divides the first accommodating cavity into a first sub-accommodating cavity and a second sub-accommodating cavity spaced apart in a third direction, and the third direction intersects with both the first direction and the second direction. The side beam structure according to claim 1 or 2, wherein the first main body structure comprises a sealing structure, and the sealing structure is located on both sides of the first accommodating cavity in the first direction, and is used for sealing the first accommodating cavity. The side beam structure according to any one of claims 1 to 3, wherein the first main body structure comprises 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 a third direction; the second main body structure comprises a second side plate close to the first main body structure, the first side plate and the second side plate are arranged opposite to each other 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, Wherein, the second side panels are arranged to extend out of both sides of the first main body structure in the first direction, and/or the second side panels are arranged to extend out of the first main body structure in the third direction. According to the side beam structure of claim 4, 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, the second through hole is located on the other side of the second side plate in the second direction, The first through hole and the second through hole are both located at a portion of the second side plate extending out of the first main body structure. The side beam structure according to any one of claims 1 to 5, wherein the second main body structure encloses a second accommodating cavity, the second main body structure includes a second reinforcement portion arranged in the second accommodating cavity, and the second reinforcement portion divides the second accommodating cavity into a third sub-accommodating cavity and a fourth sub-accommodating cavity which are spaced apart in the third direction. The side beam structure according to any one of claims 1 to 6, wherein the third sub-accommodating cavity is located on a side of the fourth sub-accommodating cavity facing a connecting surface of the second main structure for connecting to a vehicle body, and the third sub-accommodating cavity is provided with a third reinforcement portion. The side beam structure according to any one of claims 1 to 7, further comprising a third main body structure extending along the first direction, the third main body structure being located on a side of the second main body structure away from the first main body structure in the second direction, and the third main body structure and the second main body structure being integrally arranged. The side beam structure according to any one of claims 1 to 8, wherein the first main body structure and the second main body structure are integrally arranged. A chassis, used for a vehicle, comprising: A frame structure comprises the side beam structure as described in any one of claims 1 to 8, an upper cover plate and a bottom guard plate arranged relatively to each other in the third direction, wherein the side beam structure, the upper cover plate and the bottom guard plate are all detachably connected, and the frame structure encloses a storage space for accommodating battery cells. The chassis according to claim 10, wherein the second main body structure is arranged to extend from the first main body structure, the second main body structure is provided with a first through hole and a second through hole on both sides in the first direction, the first through hole and the second through hole are both located at a portion of the second main body structure extending from the first main body structure, and the chassis further comprises a front torsion box and a rear torsion box arranged opposite to each other 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. The chassis according to any one of claims 10 or 11, wherein the bottom guard plate comprises 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 is formed by being inclined and extended in the third direction away from the accommodating space, the side plate is connected between the support plate and the connecting plate, and the connecting plate and the first main structure are detachably connected. A vehicle comprising the chassis according to any one of claims 10 to 12.