Vehicle body longitudinal beam reinforcement structure and vehicle

Abstract

The embodiment of the application provides a kind of vehicle body longitudinal beam reinforcing structure and vehicle, and the longitudinal beam reinforcing structure of vehicle body includes longitudinal beam component, and longitudinal beam component includes cover plate and longitudinal beam extending along first direction, cover plate is covered in the side of longitudinal beam in second direction;Connecting plate, connecting plate is arranged on the side of longitudinal beam in second direction away from cover plate;Connecting plate is used to connect the cross beam of rear floor;Connecting piece, connecting piece is arranged in accommodating cavity, and extends in second direction;Connecting piece is used to connect longitudinal beam with auxiliary frame;Reinforcing component, reinforcing component includes first reinforcing piece and second reinforcing piece, first reinforcing piece and second reinforcing piece are arranged on the two sides of connecting piece in first direction;At least one of first reinforcing piece and second reinforcing piece is connected with cover plate and the side of longitudinal beam opposite to cover plate;And / or, at least one of first reinforcing piece and second reinforcing piece is connected with the two sides of longitudinal beam opposite in third direction, so that the structural strength of longitudinal beam is enhanced by the setting of reinforcing component.

Description

Technical Field

[0001] This application relates to the field of vehicle body structure technology, and in particular to a longitudinal beam reinforcement structure for a vehicle body and a vehicle thereof. Background Technology

[0002] The longitudinal beams are load-bearing structures located on both sides of the bottom of the vehicle body. They are connected to components such as the subframe and together form the vehicle's skeleton. During vehicle movement and in the event of a collision, the longitudinal beams are the main force transmission path and energy absorption components. The strength and stiffness of the longitudinal beams affect the overall vehicle safety and handling stability.

[0003] With increasingly stringent collision safety standards and vehicle durability requirements, higher demands are being placed on the strength of vehicle body longitudinal beams. To enhance the structural performance of longitudinal beams, existing technologies typically employ methods such as increasing the thickness of the sheet metal for reinforcement.

[0004] However, simply increasing the material thickness will increase the weight of the longitudinal beams, which is not conducive to achieving vehicle lightweighting and reduces the vehicle's fuel economy or the driving range of electric vehicles. Utility Model Content

[0005] This application provides a longitudinal beam reinforcement structure for a vehicle body and a vehicle in general, in order to solve the problem that increasing the strength of the longitudinal beams is not conducive to achieving vehicle body lightweighting.

[0006] In a first aspect, embodiments of this application provide a longitudinal beam reinforcement structure for a vehicle body, comprising:

[0007] The longitudinal beam assembly includes a cover plate and a longitudinal beam extending in a first direction. The cover plate covers one side of the longitudinal beam in a second direction and together with the longitudinal beam forms a receiving cavity.

[0008] A connecting plate is located on the side of the longitudinal beam facing away from the cover plate in the second direction; the connecting plate is used to connect the crossbeams of the rear floor.

[0009] A connector is disposed within the receiving cavity and extends in a second direction; the connector is used to connect the longitudinal beam to the subframe.

[0010] The reinforcing assembly includes a first reinforcing member and a second reinforcing member, which are disposed on both sides of the connector in a first direction; at least one of the first reinforcing member and the second reinforcing member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate; and / or, at least one of the first reinforcing member and the second reinforcing member is connected to the two sides of the longitudinal beam opposite to each other in a third direction.

[0011] It intersects with any two of the first, second, and third directions.

[0012] In one possible implementation, the first reinforcing member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate, and the first reinforcing member is also connected to the two sides of the longitudinal beam opposite to each other in the third direction.

[0013] In one possible implementation, the first reinforcing member includes:

[0014] The first main body is located on the side of the connector that faces away from the second reinforcing member in the first direction;

[0015] Multiple first connecting parts are provided, each of which is connected to a first main body. Some of the multiple first connecting parts are located at both ends of the first main body in a second direction to connect the cover plate and the longitudinal beam on the side opposite to the cover plate, respectively. The remaining first connecting parts are located on both sides of the first main body in a third direction to connect the longitudinal beam on the opposite sides in a third direction, respectively.

[0016] In one possible implementation, when the first connecting portion connects to the side of the cover plate or longitudinal beam opposite to the cover plate:

[0017] The first connecting parts are distributed on both sides of the first main body in the second direction.

[0018] In one possible implementation, when the first connecting portion connects to the longitudinal beam on the inner sidewall in the third direction:

[0019] The first connecting portion is located on the same side of the first main body portion in the first direction.

[0020] In one possible implementation, the first connecting portion is integrally connected to the first main body portion, and / or the first main body portion is an arc-shaped plate surrounding a portion of the connector in the circumferential direction, and the first connecting portion is an extension plate.

[0021] In one possible implementation, the second reinforcement is connected to the side of the longitudinal beam opposite to the cover plate, and the second reinforcement is also connected to the two sides of the longitudinal beam opposite to each other in the third direction.

[0022] In one possible implementation, the second reinforcement includes:

[0023] The second main body is located on the side of the connector that is away from the first reinforcing member in the first direction;

[0024] Multiple second connecting parts are provided, each of which is connected to a second main body. The second main body is connected to a second connecting part at one end away from the cover plate, so that the second main body is connected to the side of the longitudinal beam opposite to the cover plate through the second connecting parts. The remaining second connecting parts are distributed on the same side of the second main body in the first direction, so as to connect the two sides of the longitudinal beam opposite to each other in the third direction.

[0025] In one possible implementation, the second connecting portion is integrally connected to the second main body portion;

[0026] And / or, the second main body is an arc-shaped plate surrounding the outer circumference of the connector, and the second connecting part is an extension plate.

[0027] Secondly, embodiments of this application provide a vehicle, including:

[0028] The vehicle body, which includes the subframe;

[0029] The longitudinal beam reinforcement structure of the vehicle body, as described in any of the first aspects, includes longitudinal beams and connectors, with the connectors connecting the longitudinal beams and the subframe.

[0030] The longitudinal beam reinforcement structure and vehicle provided in this application embodiment include a longitudinal beam assembly, which includes a cover plate and a longitudinal beam extending in a first direction. The cover plate covers one side of the longitudinal beam in a second direction and together with the longitudinal beam forms a receiving cavity. A connecting plate is disposed on the side of the longitudinal beam away from the cover plate in the second direction. The connecting plate is used to connect a crossbeam of the rear floor. A connecting member is disposed in the receiving cavity and extends in the second direction. The connecting member is used to connect the longitudinal beam to the subframe. A reinforcement assembly includes a first reinforcement member and a second reinforcement member, which are disposed on both sides of the connecting member in the first direction. At least one of the first reinforcement member and the second reinforcement member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate. And / or, at least one of the first reinforcement member and the second reinforcement member is connected to the two sides of the longitudinal beam opposite to each other in a third direction.

[0031] The longitudinal beam reinforcement structure of the vehicle body provided in this application embodiment, by setting reinforcement components and arranging the first and second reinforcement members on both sides of the connector in the first direction, and connecting at least one reinforcement member to the cover plate and the longitudinal beam, can form a locally reinforced force transmission structure at the connection point of the longitudinal beam and the subframe, dispersing and transmitting the concentrated load from the subframe, enhancing the stiffness and strength of the longitudinal beam in the connection area, without increasing the material thickness of the longitudinal beam, which is conducive to achieving vehicle body lightweighting, and improving vehicle fuel economy or electric vehicle range. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0033] Figure 1 This is a structural schematic diagram of the longitudinal beam reinforcement structure of the vehicle body provided in an embodiment of this application;

[0034] Figure 2 for Figure 1 A schematic diagram of the cross-section of the longitudinal beam reinforcement structure of the mid-body along the AA direction;

[0035] Figure 3 for Figure 1 A schematic diagram of the cross-section of the longitudinal beam reinforcement structure of the mid-body along the BB direction.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100 - Longitudinal beam assembly; 110 - Longitudinal beam; 120 - Cover plate;

[0038] 200-Connecting plate;

[0039] 300 - Reinforcing component; 310 - First reinforcing member; 311 - First main body; 312 - First connecting part; 320 - Second reinforcing member; 321 - Second main body; 322 - Second connecting part;

[0040] 400-Connector.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of the embodiments of this application.

[0043] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0045] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0046] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] Unless otherwise stated, the term "multiple" means two or more.

[0048] First, let me explain the terms used in this application:

[0049] The longitudinal beams are load-bearing structures located on both sides of the bottom of the vehicle body. They are connected to components such as the subframe and together form the vehicle's skeleton. During vehicle movement and in the event of a collision, the longitudinal beams are the main force transmission path and energy absorption components. The strength and stiffness of the longitudinal beams affect the overall vehicle safety and handling stability.

[0050] With increasingly stringent collision safety standards and vehicle durability requirements, higher demands are being placed on the strength of vehicle body longitudinal beams. To enhance the structural performance of longitudinal beams, existing technologies typically employ methods such as increasing the thickness of the sheet metal for reinforcement.

[0051] However, simply increasing the material thickness will increase the weight of the longitudinal beams, which is not conducive to achieving vehicle lightweighting and reduces the vehicle's fuel economy or the driving range of electric vehicles.

[0052] The longitudinal beam reinforcement structure and vehicle provided in this application embodiment include a longitudinal beam assembly, which includes a cover plate and a longitudinal beam extending in a first direction. The cover plate covers one side of the longitudinal beam in a second direction and together with the longitudinal beam forms a receiving cavity. A connecting plate is disposed on the side of the longitudinal beam away from the cover plate in the second direction. The connecting plate is used to connect a crossbeam of the rear floor. A connecting member is disposed in the receiving cavity and extends in the second direction. The connecting member is used to connect the longitudinal beam to the subframe. A reinforcement assembly includes a first reinforcement member and a second reinforcement member, which are disposed on both sides of the connecting member in the first direction. At least one of the first reinforcement member and the second reinforcement member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate. And / or, at least one of the first reinforcement member and the second reinforcement member is connected to the two sides of the longitudinal beam opposite to each other in a third direction.

[0053] The longitudinal beam reinforcement structure of the vehicle body provided in this application embodiment, by setting reinforcement components and arranging the first and second reinforcement members on both sides of the connector in the first direction, and connecting at least one reinforcement member to the cover plate and the longitudinal beam, can form a locally reinforced force transmission structure at the connection point of the longitudinal beam and the subframe, dispersing and transmitting the concentrated load from the subframe, enhancing the stiffness and strength of the longitudinal beam in the connection area, without increasing the material thickness of the longitudinal beam, which is conducive to achieving vehicle body lightweighting, and improving vehicle fuel economy or electric vehicle range.

[0054] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0055] In a first aspect, embodiments of this application provide a longitudinal beam reinforcement structure for a vehicle body, including a longitudinal beam assembly 100, a connecting plate 200, a connector, and a reinforcement assembly 300.

[0056] The longitudinal beam assembly 100 includes a cover plate 120 and a longitudinal beam 110 extending along a first direction x. The cover plate 120 covers one side of the longitudinal beam 110 in a second direction y and together with the longitudinal beam 110 forms an accommodating cavity.

[0057] Specifically, in this embodiment, the longitudinal beam 110 is the rear longitudinal beam 110 of the vehicle, and the cover plate 120 is specifically the upper cover plate 120 of the rear longitudinal beam 110. The cover plate 120 covers one side of the longitudinal beam 110 in the second direction y, and together with the longitudinal beam 110, forms a closed or semi-closed accommodating cavity. The rear longitudinal beam 110, as a load-bearing component of the vehicle body frame, is mainly used to withstand and transmit collision forces and other loads from the rear of the vehicle to ensure the integrity of the vehicle body structure and the safety of the occupants. The upper cover plate 120 of the rear longitudinal beam 110 and the longitudinal beam 110 body together form an accommodating cavity to enhance the load-bearing capacity of the longitudinal beam 110.

[0058] In this embodiment, the connecting plate 200 is disposed on the side of the longitudinal beam 110 away from the cover plate 120 in the second direction y, and the connecting plate 200 is used to connect the crossbeam of the rear floor.

[0059] Specifically, the crossbeam of the rear floor is part of the vehicle body structure, used to support the vehicle body and transfer loads. By connecting the longitudinal beam 110 to the rear floor crossbeam through the connecting plate 200, the load borne by the longitudinal beam 110 can be transferred to the rear floor crossbeam and the vehicle body frame, thereby dispersing stress and improving the overall stress performance of the vehicle body structure.

[0060] In this embodiment, the connector is disposed within the accommodating cavity and extends in the second direction y. The connector is used to connect the longitudinal beam 110 to the subframe.

[0061] Specifically, the connector is a threaded sleeve used to connect the longitudinal beam 110 to the subframe. This allows the load borne by the subframe to be transferred to the main structure of the longitudinal beam 110, forming the main force transmission path between the vehicle body and the chassis system. By placing the connector within the cavity formed by the longitudinal beam 110 and the cover plate 120, the cavity structure can enclose and support the connector, enhancing the local stiffness of the connection point.

[0062] In this embodiment, the longitudinal beam reinforcement structure of the vehicle body further includes a reinforcement assembly 300, which includes a first reinforcement member 310 and a second reinforcement member 320. The first reinforcement member 310 and the second reinforcement member 320 are disposed on both sides of the connector in the first direction x. At least one of the first reinforcement member 310 and the second reinforcement member 320 is connected to the side of the cover plate 120 and the longitudinal beam 110 opposite to the cover plate 120. This makes the reinforcement member form a triangular support structure on one side of the connector. When the connector bears the load from the subframe, the reinforcement member on this side can simultaneously transfer the force to the side wall of the longitudinal beam 110 and the cover plate 120, thereby distributing the point load to a larger structural area and effectively improving the structural stiffness and load-bearing capacity of this side.

[0063] Alternatively, at least one of the first reinforcing member 310 and the second reinforcing member 320 may be connected to the two opposite sides of the longitudinal beam 110 in the third direction z. In this way, when the connecting member bears the load from the subframe, the reinforcing member can transfer the force from one side of the longitudinal beam 110 to the other side, so that the plates on both sides of the longitudinal beam 110 are stressed together, effectively improving the bending stiffness and overall stability of the longitudinal beam 110 in the width direction.

[0064] It should be noted that this embodiment does not limit the specific connection method of the first reinforcing member 310 and the second reinforcing member 320. In practical applications, they can be flexibly configured according to structural strength requirements and spatial layout. For example, the first reinforcing member 310 can be connected to one side of the cover plate 120 and the longitudinal beam 110, while the second reinforcing member 320 can be connected to both sides of the longitudinal beam 110; or both the first reinforcing member 310 and the second reinforcing member 320 can be connected to both sides of the longitudinal beam 110; or both the first reinforcing member 310 and the second reinforcing member 320 can be connected to one side of the cover plate 120 and the longitudinal beam 110.

[0065] In this embodiment, any two of the first direction x, the second direction y, and the third direction z intersect.

[0066] Specifically, in this embodiment, the first direction x is the extension direction of the longitudinal beam 110, that is, the front-to-back direction of the vehicle; the second direction y is the direction in which the cover plate 120 covers the longitudinal beam 110, that is, the up-down direction of the vehicle; and the third direction z is the extension direction of the connecting plate 200, that is, the left-to-right direction of the vehicle.

[0067] Please refer to Figures 1 to 3 In some embodiments, the first reinforcing member 310 is connected to the cover plate 120 and the longitudinal beam 110 on the side opposite to the cover plate 120. The first reinforcing member 310 is also connected to the two opposite sides of the longitudinal beam 110 in the third direction z. This makes the first reinforcing member 310 form a three-dimensional support structure on one side of the connector, so as to transfer the concentrated load borne by the connector to the cover plate 120 through the connection in the second direction y, and to the two sides of the longitudinal beam 110 through the connection in the third direction z, thereby avoiding the problem of stress concentration and improving the durability and reliability of the reinforcing structure of the longitudinal beam 110.

[0068] Please refer to Figures 1 to 3In some embodiments, the first reinforcing member 310 includes a first main body portion 311, which is disposed on the side of the connector facing away from the second reinforcing member 320 in the first direction x. A plurality of first connecting portions 312 are connected to the first main body portion 311. Parts of the plurality of first connecting portions 312 are located at both ends of the first main body portion 311 in the second direction y, respectively connecting the cover plate 120 and the side of the longitudinal beam 110 opposite to the cover plate 120. The remaining first connecting portions 312 are located on both sides of the first main body portion 311 in the third direction z, respectively connecting the opposite sides of the longitudinal beam 110 in the third direction z, thereby forming an integral reinforcing structure from the plurality of first connecting portions 312.

[0069] Specifically, when the connector bears a load from the subframe, the load is first transferred to the first main body 311, and the first main body 311 then transfers the load to multiple directions through multiple first connecting parts 312.

[0070] The first connecting portions 312 located on both sides of the first main body 311 in the second direction y can respectively transfer the load to the inner side of the cover plate 120 and the side of the longitudinal beam 110 opposite to the cover plate 120. The first connecting portions 312 located on both sides of the first main body 311 in the third direction z can respectively transfer the load to the two opposite side walls of the longitudinal beam 110 in the third direction z, thereby decomposing the concentrated load borne by the connector into multiple component forces, which are transferred to the longitudinal beam 110 through different paths, thus improving the overall stiffness around the connector.

[0071] Please refer to Figures 1 to 3 In some embodiments, when the first connecting portion 312 connects to the cover plate 120 or the longitudinal beam 110 on the side opposite to the cover plate 120, the first connecting portion 312 is distributed on both sides of the first main body portion 311 in the second direction y. This makes the first reinforcing member 310 form a support structure extending along the second direction y on one side of the connecting member. By distributing the first connecting portion 312 on the upper and lower sides of the first main body portion 311 in the second direction y, the first reinforcing member 310 can be connected to the upper cover plate 120 and the lower longitudinal beam 110 at the same time. This allows the force flow to be transmitted upward to the cover plate 120 and downward to the longitudinal beam 110 through the first main body portion 311 when the connecting member bears the vertical load from the subframe, thus preventing the longitudinal beam 110 from undergoing excessive deformation under concentrated load.

[0072] Please refer to Figures 1 to 3, in some embodiments, when the first connecting portion 312 connects the inner side wall of the longitudinal beam 110 in the third direction z, the first connecting portions 312 are distributed on the same side of the first main body portion 311 in the first direction x, so that the first connecting portions 312 act in the extension direction of the longitudinal beam 110. When the connecting member bears a load from the front-rear direction of the vehicle, the first connecting portions 312 can work cooperatively to diffuse the concentrated load more uniformly along the longitudinal direction of the side wall of the longitudinal beam 110, effectively dispersing stress and avoiding excessive stress concentration.

[0073] Please refer to Figures 1 to 3 , in some embodiments, the first connecting portion 312 is integrally connected with the first main body portion 311, which can eliminate the connecting interface between the first connecting portion 312 and the first main body portion 311, so that the force flow can be transmitted continuously and smoothly inside the first reinforcing member 310. When the connecting member bears a load, the acting force is directly distributed to each first connecting portion 312 through the first main body portion 311, which avoids the problem of stress concentration that may be caused by split manufacturing processes such as bolt connection or welding.

[0074] In this embodiment, the first main body portion 311 is an arc-shaped plate surrounding the outer side of a part of the connecting member in the circumferential direction, and the first connecting portion 312 is an extension plate, which enables the first main body portion 311 to fit the outer contour of the connecting member in a wrapping manner, thereby increasing the contact area between the first reinforcing member 310 and the connecting member. When the connecting member bears a load, the acting force can be transmitted to the first reinforcing member 310 through the arc-shaped plate more uniformly, avoiding local stress concentration of the connecting member.

[0075] Please refer to Figures 1 to 3 , in some embodiments, the second reinforcing member 320 is connected to a side of the longitudinal beam 110 opposite to the cover plate 120, and the second reinforcing member 320 is also connected to two opposite sides of the longitudinal beam 110 in the third direction z.

[0076] Specifically, in this embodiment, the second reinforcing member 320 and the first reinforcing member 310 are arranged on both sides of the connecting member opposite to each other along the first direction x, and the second reinforcing member 320 is also connected to two opposite sides of the longitudinal beam 110 in the third direction z, so that the second reinforcing member 320 forms a symmetrical support structure with the first reinforcing member 310 on the opposite side of the connecting member. When the connecting member bears a load, the second reinforcing member 320 transmits the acting force downward and laterally at the same time through its connection with the bottom plate and two side walls of the longitudinal beam 110, forming multi-directional force flow paths, thereby improving the overall stiffness and stability of the structure.

[0077] Meanwhile, in this embodiment, the first reinforcing member 310 and the second reinforcing member 320 can form an "Ω"-shaped structure. When the connecting member bears a load from the subframe, the "Ω"-shaped structure can disperse and transmit the load to the second direction y and the third direction z at the same time, enhancing the local stiffness at the connection point and improving the load transmission efficiency.

[0078] Please refer to Figures 1 to 3 In some embodiments, the second reinforcing member 320 includes a second main body portion 321, which is disposed on the side of the connector facing away from the first reinforcing member 310 in the first direction x. A plurality of second connecting portions 322 are provided, each connected to the second main body portion 321. One second connecting portion 322 is connected to the end of the second main body portion 321 facing away from the cover plate 120, so that the second main body portion 321 connects the side of the longitudinal beam 110 opposite to the cover plate 120 via the second connecting portions 322. The remaining second connecting portions 322 are distributed on the same side of the second main body portion 321 in the first direction x, to respectively connect the opposite sides of the longitudinal beam 110 in the third direction z.

[0079] Specifically, in this embodiment, when the connector bears a load, the load is first transferred to the second main body 321, and then transferred to the side of the longitudinal beam 110 opposite to the cover plate 120 through the second connecting part 322 located at one end of the second main body 321 in the second direction y. At the same time, through the two second connecting parts 322 distributed on the same side of the second main body 321 in the first direction x, the load is respectively transferred to the two opposite sides of the longitudinal beam 110 in the third direction z. Thus, the concentrated load at the connection point is decomposed and transferred to multiple parts of the longitudinal beam 110 by the setting of the second reinforcing member 320, thereby expanding the force distribution area and avoiding excessive stress concentration in a local area.

[0080] Please refer to Figures 1 to 3 In some embodiments, the second connecting portion 322 is integrally connected to the second main body portion 321. This eliminates the connection interface between the second connecting portion 322 and the second main body portion 321, allowing for continuous and smooth force transmission within the second reinforcing member 320. When the connector bears a load, the force is directly distributed to each of the second connecting portions 322 through the second main body portion 321, avoiding stress concentration problems that may occur due to split manufacturing processes such as bolted connections or welding.

[0081] The second main body 321 is an arc-shaped plate surrounding the outer circumference of the connector, and the second connecting part 322 is an extension plate. This allows the second main body 321 to fit snugly against the outer contour of the connector in a wrapping manner, thereby increasing the contact area between the second reinforcing member 320 and the connector. When the connector is under load, the force can be transmitted more evenly to the second reinforcing member 320 through the arc-shaped plate, avoiding local stress concentration in the connector.

[0082] Secondly, embodiments of this application provide a vehicle, including a body, the body including a subframe. As in any of the first aspects, the longitudinal beam reinforcement structure of the body includes a longitudinal beam 110 and a connector, the connector connecting the longitudinal beam 110 and the subframe.

[0083] The longitudinal beam reinforcement structure of the vehicle body has been described in the above embodiments and will not be repeated here.

[0084] The vehicle provided in this application embodiment includes a body and a longitudinal beam reinforcement structure for the body as described in the first aspect. Therefore, it has the beneficial effects of a longitudinal beam reinforcement structure for the body. By setting a reinforcement component 300 and arranging the first reinforcement member 310 and the second reinforcement member 320 on both sides of the connector in the first direction x, and by connecting at least one reinforcement member to the cover plate 120 and the longitudinal beam 110, a locally reinforced force transmission structure can be formed at the connection point between the longitudinal beam 110 and the subframe. This disperses and transmits the concentrated load from the subframe, enhances the stiffness and strength of the longitudinal beam 110 in the connection area, and eliminates the need to increase the material thickness of the longitudinal beam 110. This is beneficial for achieving lightweighting of the body and improving the fuel economy of the vehicle or the driving range of the electric vehicle.

[0085] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A longitudinal beam reinforcement structure for a vehicle body, characterized in that, include: A longitudinal beam assembly, the longitudinal beam assembly including a cover plate and a longitudinal beam extending in a first direction, the cover plate covering one side of the longitudinal beam in a second direction and together with the longitudinal beam forming an accommodating cavity; A connecting plate is disposed on the side of the longitudinal beam facing away from the cover plate in the second direction; the connecting plate is used to connect the crossbeam of the rear floor. A connector is disposed within the accommodating cavity and extends in the second direction; the connector is used to connect the longitudinal beam to the subframe. A reinforcing assembly includes a first reinforcing member and a second reinforcing member, the first reinforcing member and the second reinforcing member being disposed on both sides of the connector in the first direction; at least one of the first reinforcing member and the second reinforcing member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate; And / or, at least one of the first reinforcing member and the second reinforcing member is connected to the longitudinal beam on opposite sides in the third direction; Any two of the first direction, the second direction, and the third direction intersect.

2. The longitudinal beam reinforcement structure of the vehicle body according to claim 1, characterized in that, The first reinforcing member is connected to the cover plate and the side of the longitudinal beam opposite to the cover plate, and the first reinforcing member is also connected to the two sides of the longitudinal beam opposite to each other in the third direction.

3. The longitudinal beam reinforcement structure for the vehicle body according to claim 2, characterized in that, The first reinforcing member includes: A first main body portion is disposed on the side of the connector that is away from the second reinforcing member in the first direction; Multiple first connecting portions are provided, each of which is connected to the first main body. Some of the multiple first connecting portions are located at both ends of the first main body in the second direction to connect the cover plate and the longitudinal beam on the side opposite to the cover plate, respectively. The remaining first connecting portions are located on both sides of the first main body in the third direction to connect the longitudinal beam on the opposite sides in the third direction, respectively.

4. The longitudinal beam reinforcement structure of the vehicle body according to claim 3, characterized in that, When the first connecting part connects to the cover plate or the side of the longitudinal beam opposite to the cover plate: The first connecting portion is distributed on both sides of the first main body portion opposite to each other in the second direction.

5. The longitudinal beam reinforcement structure for the vehicle body according to claim 3, characterized in that, When the first connecting part connects the longitudinal beam to the inner side wall in the third direction: The first connecting portion is located on the same side of the first main body portion in the first direction.

6. The longitudinal beam reinforcement structure of the vehicle body according to claim 3, characterized in that, The first connecting portion is integrally connected to the first main body portion, and / or the first main body portion is an arc-shaped plate surrounding a portion of the connecting member in the circumferential direction, and the first connecting portion is an extension plate.

7. The longitudinal beam reinforcement structure of the vehicle body according to any one of claims 1-6, characterized in that, The second reinforcing member is connected to the side of the longitudinal beam opposite to the cover plate, and the second reinforcing member is also connected to the two sides of the longitudinal beam opposite to each other in the third direction.

8. The longitudinal beam reinforcement structure of the vehicle body according to claim 7, characterized in that, The second reinforcing member includes: The second main body is disposed on the side of the connector that is away from the first reinforcing member in the first direction; Multiple second connecting parts are provided, each of which is connected to the second main body. The second main body is connected to a second connecting part at one end away from the cover plate, so that the second main body is connected to the side of the longitudinal beam opposite to the cover plate through the second connecting parts. The remaining second connecting parts are distributed on the same side of the second main body in the first direction, so as to connect the longitudinal beam to the opposite sides in the third direction respectively.

9. The longitudinal beam reinforcement structure for the vehicle body according to claim 8, characterized in that, The second connecting part is integrally connected to the second main body part; And / or, the second main body is an arc-shaped plate surrounding a portion of the connector in the circumferential direction, and the second connecting portion is an extension plate.

10. A vehicle, characterized in that, include: Body, the body including a subframe; The longitudinal beam reinforcement structure of the vehicle body as described in any one of claims 1-9, wherein the longitudinal beam reinforcement structure includes a longitudinal beam and a connector, the connector connecting the longitudinal beam and the subframe.

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