Vehicle body connection components and vehicles

Abstract

This application provides a vehicle body connection assembly and a vehicle. The vehicle body connection assembly includes: a floor (1) with a through groove (11); a sill beam (2) located on one side of the floor (1) along a first direction (x), the sill beam (2) being used to connect the vehicle body; a mounting side beam (3) connected to the side of the sill beam (2) near the floor (1); and a battery (100) located at least partially below the floor (1) and mounted along the first direction (x) on the side of the mounting side beam (3) away from the sill beam (2). The battery (100) includes a housing assembly (101), the housing assembly (101) including an upper housing (101A), the upper housing (101A) closing the through groove (11).

Description

Technical Field

[0001] This application relates to the field of vehicle structure technology, and in particular to a vehicle body connection component and a vehicle. Background Technology

[0002] Because lithium-ion batteries have advantages such as high energy density, high power density, many cycles, and long storage time, they have been widely used in electric vehicles.

[0003] However, batteries currently take up a lot of space when installed in electric vehicles. Summary of the Invention

[0004] The purpose of this application is to reduce the space occupied by batteries when installed in electric vehicles.

[0005] According to a first aspect of this application, a vehicle body connection assembly is provided, comprising:

[0006] The floor has through grooves;

[0007] The door sill beam, located on one side of the floor along the first direction, is used to connect the vehicle body;

[0008] Install side beams, connecting them to the side of the sill beam closest to the floor; and

[0009] The battery is at least partially located below the floor and mounted along a first direction on the side of the mounting side beam away from the sill beam. The battery includes a housing assembly, which includes an upper housing that closes a through slot.

[0010] The vehicle body connection assembly of this embodiment closes the through-slot on the floor by using the top wall of the upper battery housing as part of the floor. This saves space in the height direction when installing the battery while ensuring the integrity of the floor, so that a thicker battery can be installed, thereby increasing the energy density of the battery to extend the vehicle's range, or leaving space for the installation of other components in the vehicle, reducing the difficulty of the vehicle's interior layout, and also making the vehicle body connection assembly lighter.

[0011] In some embodiments, both the sill beam and the mounting side beam extend along a second direction, which is perpendicular to the first direction.

[0012] This embodiment extends the door sill beam along the second direction, which can improve the structural stability of the floor along the length of the vehicle, thereby making the vehicle structure more stable; moreover, the mounting side beam also extends along the second direction, which can leave more space for the battery in the first direction.

[0013] In some embodiments, the portion of the sill beam closest to the floor is sealed between it and the mounting side beam.

[0014] This embodiment takes into account that this battery installation method creates a first gap between the battery and the through-slot, and a second gap between the portion of the sill beam near the floor and the mounting side beam. Impurities, foreign objects, or moisture from inside the vehicle can easily enter the side of the mounting side beam away from the battery through these first and second gaps. By sealing the portion of the sill beam near the floor between the sill beam and the mounting side beam, the second gap can be eliminated, preventing impurities or foreign objects from entering between the sill beam and the mounting side beam, avoiding damage or corrosion to structural components, and improving the vehicle's service life. Furthermore, it also prevents impurities or moisture between the sill beam and the mounting side beam from entering the battery installation area through the second gap, thereby improving the reliability and safety of battery operation.

[0015] In some embodiments, the sill beam includes a first main body and an overlapping portion, the overlapping portion being connected along a first direction to the side of the first main body near the battery;

[0016] The mounting side beam includes a second main body and an extension, the extension being connected along a first direction to the side of the first main body away from the battery;

[0017] The first main body is connected to the extension, the overlapping part is located above the second main body, and the overlapping part is sealed to the second main body.

[0018] This embodiment connects the sill beam and the mounting side beam together, which improves the overall structural rigidity, makes the battery installation more secure, and prevents deformation of the mounting side beam from causing the battery to change position or tilt, thus helping to ensure the integrity of the floor. Furthermore, this connection structure between the sill beam and the mounting side beam reduces the space they occupy in the first direction, increasing the battery installation space. Additionally, by covering the second main body with the overlapping portion, support is formed between the overlapping portion and the second main body, further improving the overall structural rigidity, preventing deformation of the sill beam and the mounting side beam, and also improving the separation between the area above the floor inside the vehicle and the area between the sill beam and the mounting side beam, preventing foreign objects, impurities, or moisture from entering the vehicle body connection components.

[0019] In some embodiments, the vehicle body connection assembly further includes a seal disposed between the overlap portion and the second main body portion for sealing the overlap portion and the second main body portion.

[0020] This embodiment improves the sealing performance of the connection between the sill beam and the mounting side beam by providing a seal between the overlapping portion and the second main body. This prevents impurities or foreign objects from entering between the sill beam and the mounting side beam, avoiding damage or corrosion to the structural components and extending the vehicle's service life. Furthermore, it prevents impurities or moisture between the sill beam and the mounting side beam from entering the battery mounting area through the second gap, thereby improving the reliability and safety of battery operation. Moreover, the seal facilitates assembly, ensures a good sealing effect, and guarantees assembly consistency for different vehicle body connection components.

[0021] In some embodiments, the seal includes a sealing plate, a first protrusion and a second protrusion, a sill beam and a mounting side beam both extending along a second direction, the second direction being perpendicular to the first direction, and the first protrusion and the second protrusion being respectively disposed on both sides of the sealing plate along a third direction, the third direction being perpendicular to the first direction and the second direction.

[0022] The overlapping part and the second main body are respectively provided with a first recess and a second recess on their opposite surfaces, with the first protrusion embedded in the first recess and the second protrusion embedded in the second recess.

[0023] In this embodiment, the seal forms a convex-concave fit with the sill beam and the mounting side beam on both sides along the third direction, which can extend the sealing path between the overlapping part and the second main body and optimize the sealing effect. Moreover, this fitting structure can connect the overlapping part and the second main body. When the vehicle body connecting assembly is subjected to vibration or impact, the convex-concave fit structure between the seal and the overlapping part and the second main body can restrict the relative misalignment between the sill beam and the mounting side beam along the first direction, improve the overall rigidity, and the seal can also absorb vibration.

[0024] In some embodiments, the seal includes a plurality of first protrusions and a plurality of second protrusions, which are staggered along a first direction.

[0025] This embodiment provides a plurality of first protrusions and a plurality of second protrusions on the seal, and sets them off in a staggered manner along a first direction, so that the sealing performance of the seal is more uniform along the entire sealing length, and the connection between the seal and the overlapping part and the second main body is more secure, thereby improving the reliability of the sealing connection between the sill beam and the mounting side beam.

[0026] In some embodiments, the sealing element extends in the same direction as the sill beam and the mounting side beam, and its extension length covers the entire mating length between the overlap and the second body portion.

[0027] This embodiment makes the extension length of the seal along the second direction consistent with the mating length of the overlap portion and the second main body portion, which can improve the sealing performance of the sill beam and the mounting side beam over the entire mating length, thereby ensuring the overall sealing effect.

[0028] In some embodiments, the overlapping portion retracts a predetermined distance relative to the second body portion along a first direction, and the retracted area is coated with a sealant.

[0029] This embodiment, by applying a sealant to the area where the overlap is retracted relative to the second main body, can further ensure the airtightness and watertightness of the connection between the sill beam and the mounting side beam near the battery. This not only reliably prevents impurities or foreign objects from entering between the sill beam and the mounting side beam, avoiding damage or corrosion to the structural components and improving the service life of the vehicle, but also improves the overall connection rigidity by connecting the sill beam and the mounting side beam near the end.

[0030] In some embodiments, the sill beam includes a first main body and an overlapping portion, the overlapping portion being connected along a first direction to the side of the first main body near the battery, and the mounting side beam includes a second main body and an extension portion, the extension portion being connected along a first direction to the side of the second main body away from the battery, and the first main body and the extension portion being detachably connected.

[0031] This embodiment, based on the overlapping of the second main body and the lap joint, also detachably connects the first main body and the extension. This improves the connection stiffness between the sill beam and the mounting side beam, which in turn increases the overall bending stiffness and bending modes, giving the vehicle body connection structure better vibration and impact resistance. Furthermore, the detachable connection between the first main body and the extension facilitates the replacement and maintenance of individual components in the sill beam and mounting side beam, and is easy to assemble.

[0032] In some embodiments, the vehicle body connection assembly further includes a nut plate and a plurality of fasteners. A cavity is provided in the first main body near the extension, and the nut plate is disposed in the cavity. The sill beam and the mounting side beam both extend along a second direction, which is perpendicular to the first direction. A plurality of mounting holes are provided at intervals along the second direction in both the extension and the first main body. The nut plate includes a plurality of nut interfaces provided at intervals along the second direction. The fasteners pass through the mounting holes of the extension and the first main body in sequence and are connected to the corresponding nut interfaces.

[0033] This embodiment uses fasteners to detachably connect the sill beam and the mounting side beam, which improves the ease of assembly or disassembly and ensures the connection strength between the two.

[0034] In some embodiments, a concave-convex fitting structure is provided between the first main body portion and the extension portion, and they are connected at the concave-convex fitting structure.

[0035] This embodiment enhances the overall bending stiffness and bending mode of the sill beam after it is connected to the mounting side beam by setting a concave-convex mating structure between the first main body and the extension, so that the first main body and the extension are staggered.

[0036] In some embodiments, an adhesive layer is provided between the first main body portion and the extension portion at the connection point.

[0037] This embodiment, by providing an adhesive layer at the connection between the first main body and the extension, can prevent misalignment between the sill beam and the mounting side beam during fastener installation, improve the reliability of the connection between the first main body and the extension, and also improve the sealing performance of the connection.

[0038] According to a second aspect of this application, a vehicle is provided, comprising: a vehicle body and a vehicle body connection assembly as described above, wherein the vehicle body is connected to the top of a door sill beam. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of some embodiments of the battery installation in a vehicle according to this application.

[0041] Figure 2 This is an exploded view of some embodiments of the battery in this application.

[0042] Figure 3 This is a schematic diagram of the structure of some embodiments of the vehicle body connection assembly of this application.

[0043] Figure 4 This is a structural diagram of some embodiments of the connection between the sill beam and the mounting side beam.

[0044] Figure 5 This is a structural schematic diagram of some embodiments of the door sill beam.

[0045] Figure 6 Schematic diagrams of some embodiments for installing side beams.

[0046] Figure 7 This is a structural schematic diagram of some embodiments of the seal.

[0047] Figure 8 This is a structural schematic diagram of some embodiments of the gasket.

[0048] The accompanying drawings are not drawn to scale.

[0049] Marker explanation:

[0050] 1. Floor; 11. Through groove; 2. Threshold beam; 21. First main body; 211. Third protrusion; 212. Cavity; 22. Overlap; 221. First recess; 3. Mounting side beam; 31. Second main body; 311. Second recess; 32. Extension; 321. Third recess; 322. Mounting hole; 4. Seal; 41. Sealing plate; 42. First protrusion; 43. Second protrusion; 5. Sealant; 6. Nut plate; 61. Base plate; 62. Nut interface; 7. Fastener; 8. Gasket; 81. Through hole; 9. Adhesive layer;

[0051] 100. Battery; 101. Housing assembly; 101A. Upper housing; 101B. Lower housing; 100'. Battery module; 10. Individual battery cell;

[0052] 200. Vehicle; 201. Axle; 202. Wheel; 203. Motor; 204. Controller. Detailed Implementation

[0053] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0054] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0055] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" does not mean strictly vertical, but rather within the permissible range of error. "Parallel" does not mean strictly parallel, but rather within the permissible range of error. The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application.

[0056] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least some of the embodiments of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0059] This application uses terms such as "upper," "lower," "top," "bottom," "front," "back," "inner," and "outer" to indicate orientation or positional relationships. This is only for the convenience of describing this application and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this application.

[0060] The battery mentioned in the embodiments of this application refers to a single physical module comprising multiple battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack, etc.

[0061] Battery cells may include lithium-ion rechargeable batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and this application embodiment is not limited to these. Battery cells may be cylindrical, flat, cuboid, or other shapes, etc., and this application embodiment is not limited to these. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and this application embodiment is not limited to these.

[0062] The inventors discovered through research that traditional battery installations in vehicles typically involve welding the sill beam to the floor and connecting the vehicle body to the top of the sill beam. The floor is a single, integral structure, with the battery positioned beneath it and mounted on a mounting beam located to one side of the sill beam. Therefore, the battery occupies a relatively large vertical dimension during installation. Furthermore, the mounting beam and sill beam are independent of each other near the floor, meaning the battery's installation reliability depends on the strength of the mounting beam itself, thus requiring high strength from the beam.

[0063] In this installation method, the top wall of the battery box, the distance between the box and the floor, and the thickness of the floor all occupy vertical space, requiring a large vertical dimension for battery installation. To reduce the vertical space occupied, and to make room for installing thicker batteries or other components, the inventors broke with traditional thinking and conceived of incorporating the top wall of the battery box as part of the floor. This eliminates the need for both the floor thickness and the distance between the box and the floor at the battery location.

[0064] Following this line of thought, this application aims to improve the vehicle body connection assembly. The vehicle body connection assembly includes: a floor, a sill beam, a mounting side beam, and a battery. The floor has a through groove, the sill beam is located on one side of the floor along a first direction, and the sill beam is used to connect to the vehicle body; the mounting side beam is connected to the side of the sill beam closest to the floor; at least a portion of the battery is located below the floor and is mounted along the first direction on the side of the mounting side beam away from the sill beam, the battery includes a housing, the housing includes an upper housing, and the upper housing closes the through groove.

[0065] This type of vehicle body connection assembly closes the through-slot on the floor through the top wall of the upper battery housing, which can save space in the vertical direction when installing the battery, so as to install a thicker battery, thereby increasing the energy density of the battery to extend the vehicle's range, or leave space for installing other components in the vehicle, reducing the difficulty of the vehicle's interior layout.

[0066] like Figure 1 As shown, the electrical device can be a vehicle 200, such as a new energy vehicle, which can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle; or the electrical device can be a drone or a ship. Specifically, the vehicle 200 may include an axle 201, wheels 202 connected to the axle 201, a motor 203, a controller 204, and a battery 100. The motor 203 is used to drive the axle 201 to rotate, the controller 204 is used to control the operation of the motor 203, and the battery 100 may be located at the bottom, front, or rear of the vehicle 200 to provide power for the operation of the motor 203 and other components in the vehicle.

[0067] Furthermore, the vehicle 200 may also include a vehicle body and a vehicle body connection assembly as described above, with the vehicle body connected to the top of the sill beam.

[0068] Figure 2 The diagram below illustrates the structure of some embodiments of the battery 100 of this application. The battery 100 includes a housing assembly 101 and battery cells 10. In the battery 100, there can be one or more battery cells 10. If there are multiple battery cells 10, they can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 10 can be connected in both series and parallel configurations. This can be achieved by first connecting multiple battery cells 10 in series, parallel, or in a mixed configuration to form a battery module, and then connecting multiple battery modules in series, parallel, or in a mixed configuration to form a whole, which is then housed within the housing assembly 101. Alternatively, all battery cells 10 can be directly connected in series, parallel, or in a mixed configuration, and then the whole formed by all battery cells 10 is housed within the housing assembly 101.

[0069] The housing assembly 101 has a hollow internal structure, and at least one battery module 100' is housed within it. For example, the housing assembly 101 may include an upper housing 101A and a lower housing 101B. The upper housing 101A and lower housing 101B are fastened together. For example, both the upper housing 101A and lower housing 101B can be hollow cuboids, each with only one open side. The openings of the upper housing 101A and lower housing 101B are opposite to each other, and the upper housing 101A and lower housing 101B are fastened together to form a housing with a closed cavity. Alternatively, the upper housing 101A can be an open cuboid while the lower housing 101B is plate-shaped, or the lower housing 101B can be an open cuboid while the upper housing 101A is plate-shaped, with the upper housing 101A and lower housing 101B being opposite to each other and fastened together to form a housing with a closed cavity. At least one battery module 100' is connected in parallel, series, or mixed with each other and placed in a closed cavity formed by the upper housing 101A and the lower housing 101B after they are fastened together.

[0070] In some embodiments, such as Figure 3 As shown, this application provides a vehicle body connection assembly, including: a floor 1, a door sill beam 2, a mounting side beam 3, and a battery 100.

[0071] A through groove 11 is provided on the floor 1; a sill beam 2 is located on one side of the floor 1 along a first direction x, and the sill beam 2 is used to connect to the vehicle body; a mounting side beam 3 is connected to the side of the sill beam 2 near the floor 1; at least a portion of the battery 100 is located below the floor 1 and is mounted along the first direction x on the side of the mounting side beam 3 away from the sill beam 2; the battery 100 includes a housing assembly 101, the housing assembly 101 includes an upper housing 101A, and the upper housing 101A closes the through groove 11. The first direction x can be the width direction of the vehicle.

[0072] The shape of the through groove 11 can be adapted to the shape of the battery 100, and the size of the through groove 11 can also be adapted to the outer peripheral size of the battery 100. This allows the battery 100 to be located within the through groove 11 so that the upper housing 101A of the battery 100 can close the through groove 11, while also reducing the gap between the battery 100 and the through groove 11 to prevent foreign objects from falling into the installation space of the battery 100 from the vehicle body through this gap. Most of the battery 100 is located below the floor 1, and the top of the battery 100 can extend into the through groove 11 to close the through groove 11. The top surface of the battery 100 can be flush with, lower than, or higher than the upper surface of the floor 1.

[0073] The sill beam 2 is a long strip structure and an important component of the vehicle body. It is installed on the side of the floor 1, and can extend along the front-rear direction of the vehicle. The top of the sill beam 2 can be connected to the vehicle body. The mounting side beam 3 is connected to the side of the sill beam 2 closest to the floor 1 and is used to install the battery 100. The battery 100 is installed along a first direction x on the side of the mounting side beam 3 away from the sill beam 2, such that at least a portion of the mounting side beam 3 is located between the battery 100 and the sill beam 2. Both the sill beam 2 and the mounting side beam 3 can adopt a frame structure, which can meet the structural strength requirements and achieve lightweighting of the vehicle body connection components.

[0074] In this embodiment, the vehicle body connection assembly closes the through groove 11 on the floor 1 through the top wall of the upper housing 101A of the battery 100, making the top wall of the upper housing 101A part of the floor 1. This can save space in the height direction when installing the battery while ensuring the integrity of the floor 1, so as to install a thicker battery 100, thereby increasing the energy density of the battery 100 to extend the vehicle's driving range, or leaving space for the installation of other components in the vehicle, reducing the difficulty of the vehicle's interior layout, and also making the vehicle body connection assembly lighter.

[0075] In some embodiments, such as Figure 4 As shown, both the sill beam 2 and the mounting side beam 3 extend along the second direction y, which is perpendicular to the first direction x. The second direction y can be the length direction of the vehicle.

[0076] This embodiment extends the sill beam 2 along the second direction y, which can improve the structural stability of the floor 1 along the length of the vehicle, thereby making the vehicle structure more stable; moreover, the mounting side beam 3 also extends along the second direction y, which can leave more space for the battery 100 in the first direction x.

[0077] In some embodiments, the portion of the threshold beam 2 near the floor 1 is sealed with the mounting side beam 3.

[0078] Various sealing methods can be used, such as applying sealant or installing sealing elements. The portion of the sill beam 2 near the floor 1 can be sealed only with the mounting side beam 3, or it can be connected in addition to a seal to further improve the reliability of the seal.

[0079] This embodiment takes into account that this battery installation method creates a first gap between the battery 100 and the through slot 11, and a second gap between the portion of the sill beam 2 near the floor 1 and the mounting side beam 3. Impurities, foreign objects, or moisture inside the vehicle can easily enter the side of the mounting side beam 3 away from the battery 100 through the first and second gaps. By sealing the portion of the sill beam 2 near the floor 1 and the mounting side beam 3, the second gap can be eliminated, preventing impurities or foreign objects from entering between the sill beam 2 and the mounting side beam 3, avoiding damage or corrosion to the structural components, and improving the vehicle's service life. Furthermore, it also prevents impurities or moisture between the sill beam 2 and the mounting side beam 3 from entering the battery 100 installation area through the second gap, thereby improving the reliability and safety of the battery 100's operation.

[0080] In some embodiments, such as Figure 5 As shown, the sill beam 2 includes a first main body 21 and an overlapping portion 22, the overlapping portion 22 being connected along a first direction x to the side of the first main body 21 near the battery 100. Figure 6 As shown, the mounting side beam 3 includes a second main body 31 and an extension 32. The extension 32 is connected to the side of the first main body 21 away from the battery 100 along a first direction x. The first main body 21 is connected to the extension 32, and the overlapping part 22 is located above the second main body 31, and the overlapping part 22 is sealed to the second main body 31.

[0081] For example, both the sill beam 2 and the mounting side beam 3 can be designed as frame structures with multiple transverse and / or longitudinal partitions inside, which not only increases the strength of the frame structure but also reduces weight. For example, in a cross-section perpendicular to the second direction y, the first main body 21 can have a rectangular structure, and the overlapping part 22 can be connected to the side of the first main body 21 near the battery 100 along the first direction x. The overlapping part 22 can be a plate-like structure or a combination of a plate-like structure and a frame structure. In the first direction x, the overlapping part 22 can extend to be flush with the side of the mounting side beam 3 near the battery 100, or retract by a predetermined distance. The second main body 31 can be rectangular, and its height can be the same as the height of the battery 100. The extension part 32 is connected to the side of the second main body 31 away from the battery 100 along the first direction x and is located in the bottom area of ​​the second main body 31.

[0082] This embodiment connects the sill beam 2 and the mounting side beam 3 together, which improves the overall structural rigidity and makes the installation of the battery 100 more secure. It prevents the mounting side beam 3 from deforming and causing the battery 100 to change position or tilt, thus helping to ensure the integrity of the floor 1. Moreover, this connection structure between the sill beam 2 and the mounting side beam 3 reduces the space they occupy in the first direction x, thereby increasing the installation space for the battery 100. In addition, by covering the second main body 31 with the overlapping part 22, a support can be formed between the overlapping part 22 and the second main body 31, further improving the overall structural rigidity, preventing the sill beam 2 and the mounting side beam 3 from deforming, and also improving the separation between the area above the floor 1 and the area between the sill beam 2 and the mounting side beam 3, preventing foreign objects, impurities, or moisture from entering the vehicle body connection components.

[0083] In some embodiments, the vehicle body connection assembly further includes a seal 4 disposed between the overlapping portion 22 and the second main body portion 31, that is, the seal 4 is disposed within the second gap between the overlapping portion 22 and the second main body portion 31, for achieving a seal between the overlapping portion 22 and the second main body portion 31. For example, the seal 4 may be an elastic part such as a rubber component, so as to achieve a seal by compression in the installed state.

[0084] This embodiment improves the sealing performance of the connection between the sill beam 2 and the mounting side beam 3 by providing a seal 4 between the overlapping portion 22 and the second main body portion 31. This prevents impurities or foreign objects from entering between the sill beam 2 and the mounting side beam 3, avoiding damage or corrosion to the structural components and extending the vehicle's service life. Furthermore, it prevents impurities or moisture between the sill beam 2 and the mounting side beam 3 from entering the battery 100's mounting area through the second gap, thereby improving the reliability and safety of the battery 100's operation. Moreover, the seal 4 facilitates assembly, ensures a good sealing effect, and guarantees assembly consistency for different vehicle body connection components.

[0085] In some embodiments, such as Figure 7 As shown, the seal 4 includes a sealing plate 41, a first protrusion 42, and a second protrusion 43. The sill beam 2 and the mounting side beam 3 both extend along a second direction y, which is perpendicular to the first direction x. The first protrusion 42 and the second protrusion 43 are respectively located on both sides of the sealing plate 41 along a third direction z, which is perpendicular to both the first direction x and the second direction y. The third direction z can be the height direction of the vehicle. Figure 5 and Figure 6 As shown, a first recessed portion 221 and a second recessed portion 311 are respectively provided on the surfaces opposite to the overlapping portion 22 and the second main body portion 31. A first protrusion 42 is embedded in the first recessed portion 221, and a second protrusion 43 is embedded in the second recessed portion 311.

[0086] In this embodiment, the seal 4 forms a concave-convex fit with the sill beam 2 and the mounting side beam 3 on both sides along the third direction z, which can extend the sealing path between the overlapping part 22 and the second main body part 31 and optimize the sealing effect. Moreover, this fit structure can connect the overlapping part 22 and the second main body part 31. When the vehicle body connection assembly is subjected to vibration or impact, the concave-convex fit structure between the seal 4 and the overlapping part 22 and the second main body part 31 can restrict the relative misalignment between the sill beam 2 and the mounting side beam 3 along the first direction x, improve the overall rigidity, and the seal 4 can also absorb vibration.

[0087] In some embodiments, such as Figure 7 As shown, the seal 4 includes a plurality of first protrusions 42 and a plurality of second protrusions 43, which are staggered along a first direction x.

[0088] For example, a plurality of first protrusions 42 and a plurality of second protrusions 43 are alternately arranged along a first direction x.

[0089] This embodiment provides a plurality of first protrusions 42 and a plurality of second protrusions 43 to the seal, and sets them off in a staggered manner along the first direction x, so that the sealing performance of the seal 4 is more uniform over the entire sealing length, and the connection between the seal 4 and the overlapping part 22 and the second main body part 31 is more secure, thereby improving the reliability of the sealing connection between the sill beam 2 and the mounting side beam 3.

[0090] In some embodiments, the sealing element 4 extends in the same direction as the sill beam 2 and the mounting side beam 3, and its extension length covers the entire mating length between the overlap portion 22 and the second body portion 31.

[0091] This embodiment makes the extension length of the seal 4 along the second direction y consistent with the mating length of the overlap portion 22 and the second main body portion 31, which can improve the sealing performance of the sill beam 2 and the mounting side beam 3 over the entire mating length, thereby ensuring the overall sealing effect.

[0092] In some embodiments, such as Figure 3 As shown, the overlapping portion 22 is retracted a predetermined distance relative to the second main body portion 31 along the first direction x, and the retracted area is coated with a sealant 5, such as PVC glue.

[0093] This embodiment, by applying sealant 5 to the area where the overlap 22 is retracted relative to the second main body 31, can further ensure the airtightness and watertightness of the connection between the sill beam 2 and the mounting side beam 3 near the battery 100. This can reliably prevent impurities or foreign objects inside the vehicle from entering between the sill beam 2 and the mounting side beam 3, avoiding damage or corrosion to the structural components and improving the service life of the vehicle. It can also improve the overall connection rigidity by connecting the sill beam 2 and the mounting side beam 3 near the end.

[0094] In some embodiments, the sill beam 2 includes a first main body 21 and an overlapping portion 22. The overlapping portion 22 is connected to the side of the first main body 21 near the battery 100 along a first direction x. The mounting side beam 3 includes a second main body 31 and an extension portion 32. The extension portion 32 is connected to the side of the second main body 31 away from the battery 100 along a first direction x. The first main body 21 and the extension portion 32 are detachably connected, for example, by means of fastener connection or snap-fit.

[0095] In this embodiment, based on the overlapping of the first main body 21 and the second main body 31, the first main body 21 and the extension 32 are also detachably connected. This improves the connection stiffness between the sill beam 2 and the mounting side beam 3, which helps to increase the overall bending stiffness and bending mode, giving the vehicle body connection structure better vibration and impact resistance. Moreover, the detachable connection between the first main body 21 and the extension 32 facilitates the replacement and maintenance of individual components in the sill beam 2 and the mounting side beam 3, and is easy to assemble.

[0096] In some embodiments, such as Figure 3 As shown, the vehicle body connection assembly also includes a nut plate 6 and multiple fasteners 7. A cavity 212 is provided near the extension 32 in the first main body 21, and the nut plate 6 is disposed within the cavity 212. The nut plate 6 can extend along the second direction y. The sill beam 2 and the mounting side beam 3 both extend along the second direction y, which is perpendicular to the first direction x. Multiple mounting holes 322 are provided at intervals along the second direction y on both the extension 32 and the first main body 21. The nut plate 6 includes multiple nut interfaces 62 spaced at intervals along the second direction y. The fasteners 7 sequentially pass through the mounting holes 322 of the extension 32 and the first main body 21 and connect to the corresponding nut interfaces 62. For example, the fasteners 7 can be screws or bolts.

[0097] Optionally, a gasket 8 may be provided between the nut plate 6 and the first main body 21. The gasket 8 may have multiple through holes 81 spaced apart along the second direction y.

[0098] For example, the nut plate 6 may include a base plate 61 and a plurality of nut interfaces 62 spaced apart on the base plate 61 along the second direction y. The nut interface 62 may be a columnar structure with threaded holes. The nut interface 62 is located on the side of the base plate 61 away from the extension 32 along the third direction z. The fastener 7 may pass through the mounting hole 322 of the extension 32, the mounting hole 322 of the first main body 21, the through hole 81 and the nut interface 62 in sequence from bottom to top.

[0099] This embodiment uses fasteners 7 to detachably connect the sill beam 2 and the mounting side beam 3, which improves the ease of assembly or disassembly and ensures the connection strength between the two.

[0100] In some embodiments, such as Figure 3 and Figure 4 As shown, a convex-concave mating structure is provided between the first main body 21 and the extension 32, and they are connected at the convex-concave mating structure. For example, a detachable connection is achieved at the convex-concave mating structure by means of a fastener 7.

[0101] For example, such as Figure 5 As shown, the first main body 21 has a third protrusion 211 on the side facing the extension 32, and the extension 32 has a third recess 321 on the side facing the first main body 21. The third protrusion 211 is embedded in the third recess 321 to form a convex-concave mating structure.

[0102] This embodiment provides a convex-concave mating structure between the first main body 21 and the extension 32, so that the first main body 21 and the extension 32 are staggered, which can enhance the overall bending stiffness and bending mode after the sill beam 2 and the mounting side beam 3 are connected.

[0103] In some embodiments, an adhesive layer 9 is provided between the first main body portion 21 and the extension portion 32 at the connection point. For example, the adhesive layer 9 may be a layer structure formed of an adhesive substance such as glue, or a sealant may be used to improve the sealing effect. For example, the adhesive layer 9 may be provided between the third protrusion portion 211 and the third recess portion 321.

[0104] This embodiment, by providing an adhesive layer 9 at the connection between the first main body 21 and the extension 32, can prevent positional misalignment between the sill beam 2 and the mounting side beam 3 when installing the fastener 7, improve the reliability of the connection between the first main body 21 and the extension 32, and also improve the sealing performance of the connection.

[0105] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle body connection assembly, comprising: Floor (1) is provided with a through groove (11); A sill beam (2) is located on one side of the floor (1) along a first direction (x), and the sill beam (2) is used to connect the vehicle body; Mounting side beam (3) is connected to the side of the sill beam (2) near the floor (1), wherein the portion of the sill beam (2) near the floor (1) is sealed to the mounting side beam (3); and A battery (100) is located at least partially below the floor (1) and mounted along the first direction (x) on the side of the mounting side beam (3) away from the threshold beam (2). The battery (100) includes a housing assembly (101) including an upper housing (101A) that closes the through slot (11). The threshold beam (2) includes a first main body (21) and an overlapping part (22), the overlapping part (22) being connected along the first direction (x) to the side of the first main body (21) near the battery (100); the mounting side beam (3) includes a second main body (31) and an extension part (32), the extension part (32) being connected along the first direction (x) to the side of the first main body (21) away from the battery (100); wherein the first main body (21) is connected to the extension part (32), the overlapping part (22) is located above the second main body (31), and the overlapping part (22) is sealed to the second main body (31).

2. The vehicle body connection assembly of claim 1, wherein, Both the threshold beam (2) and the mounting side beam (3) extend along the second direction (y), which is perpendicular to the first direction (x).

3. The vehicle body connection assembly according to claim 1 further includes a seal (4), the seal (4) being disposed between the overlapping portion (22) and the second main body portion (31) for achieving a seal between the overlapping portion (22) and the second main body portion (31).

4. The vehicle body connection assembly of claim 3, wherein, The sealing element (4) includes a sealing plate (41), a first protrusion (42) and a second protrusion (43). The sill beam (2) and the mounting side beam (3) both extend along a second direction (y), which is perpendicular to the first direction (x). The first protrusion (42) and the second protrusion (43) are respectively provided on both sides of the sealing plate (41) along a third direction (z), which is perpendicular to the first direction (x) and the second direction (y). The overlapping part (22) and the second main body part (31) are respectively provided with a first recess (221) and a second recess (311) on their opposite surfaces. The first protrusion (42) is embedded in the first recess (221) and the second protrusion (43) is embedded in the second recess (311).

5. The vehicle body connection assembly of claim 4, wherein, The seal (4) includes a plurality of first protrusions (42) and a plurality of second protrusions (43), which are staggered along the first direction (x).

6. The vehicle body connection assembly according to any one of claims 3 to 5, wherein, The extension direction of the seal (4) is consistent with that of the sill beam (2) and the mounting side beam (3), and the extension length covers the entire mating length of the overlap (22) and the second main body (31).

7. The vehicle body connection assembly according to any one of claims 1 to 6, wherein, The overlapping portion (22) retracts a predetermined distance relative to the second main body portion (31) along the first direction (x), and the retracted area is coated with sealant (5).

8. The vehicle body connection assembly according to any one of claims 1 to 7, wherein, The threshold beam (2) includes a first main body (21) and an overlapping part (22). The overlapping part (22) is connected to the side of the first main body (21) near the battery (100) along the first direction (x). The mounting side beam (3) includes a second main body (31) and an extension part (32). The extension part (32) is connected to the side of the second main body (31) away from the battery (100) along the first direction (x). The first main body (21) and the extension part (32) are detachably connected.

9. The vehicle body connection assembly according to claim 8 further includes a nut plate (6) and a plurality of fasteners (7), wherein the first main body (21) is provided with a cavity (212) near the extension (32), the nut plate (6) is disposed in the cavity (212), the sill beam (2) and the mounting side beam (3) both extend along a second direction (y), the second direction (y) is perpendicular to the first direction (x), the extension (32) and the first main body (21) are provided with a plurality of mounting holes (322) spaced apart along the second direction (y), the nut plate (6) includes a plurality of nut interfaces (62) spaced apart along the second direction (y), and the fasteners (7) sequentially pass through the mounting holes (322) of the extension (32) and the first main body (21) and are connected to the corresponding nut interfaces (62).

10. The vehicle body connection assembly according to claim 8 or 9, wherein, The first main body (21) and the extension (32) are provided with a concave-convex fitting structure and are connected at the concave-convex fitting structure.

11. The vehicle body connection assembly according to any one of claims 8 to 10, wherein, An adhesive layer (9) is provided between the first main body (21) and the extension (32) at the connection point.

12. A vehicle (200), comprising: The vehicle body and the vehicle body connection assembly according to any one of claims 1 to 11, wherein the vehicle body is connected to the top of the sill beam (2).

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