Vehicle

Abstract

The embodiment of the utility model provides a vehicle. The vehicle comprises a vehicle body and a battery pack. The vehicle body comprises a doorsill beam and a cross beam connected to the inner side of the doorsill beam. The battery pack comprises a tray, the tray comprises a first frame, the first frame is provided with a plurality of side mounting pieces, and at least part of the side mounting pieces are connected with the cross beams. According to the CTB battery pack with the low endurance mileage, the installation position can be moved inwards by connecting the side installation piece with the cross beam arranged on the inner side of the doorsill beam, so that the thickness of the first frame can be reduced, light weight of a vehicle can be achieved, vehicle materials can be reduced, and the production cost of the vehicle can be reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicles, and particularly relates to a vehicle. BACKGROUND

[0002] CTB (Cell to Body) technology is an innovative measure for new energy vehicles, which combines a battery pack with a vehicle body closely together to improve the performance in terms of space utilization, vehicle body stiffness, driving experience and safety, etc.

[0003] In the related art, a CTB battery pack includes a tray and a battery cell limited in the tray, wherein two side frames of the tray are provided with mounting pieces, and the mounting pieces are fixedly connected with left and right rocker beams closest to the outer side of the vehicle body. However, for a CTB battery pack with low endurance mileage, since the number of battery cells required is small, in order to meet the boundary limiting requirement of the battery cell, it is usually necessary to widen the side frame, which will cause the weight and production cost of the vehicle to increase. UTILITY MODEL CONTENT

[0004] The present application aims to provide a vehicle to solve the problem that the side frame of the existing CTB battery pack with low endurance mileage is wide, resulting in an increase in the weight and production cost of the vehicle.

[0005] In order to solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the present application discloses a vehicle, comprising: a vehicle body and a battery pack.

[0007] The vehicle body comprises a rocker beam and a cross beam connected to the inner side of the rocker beam.

[0008] The battery pack comprises a tray, and the tray comprises a first side frame provided with a plurality of side mounting pieces, and at least part of the side mounting pieces are connected with the cross beam.

[0009] Optionally, the cross beam comprises a front cross beam and a rear cross beam arranged at intervals along the length direction of the vehicle body.

[0010] The side mounting pieces comprise a first side mounting piece and a second side mounting piece, the first side mounting piece corresponds to and is connected with the position of the front cross beam, and the second side mounting piece corresponds to and is connected with the position of the rear cross beam.

[0011] Optionally, the vehicle body further comprises a front longitudinal beam and a rear longitudinal beam arranged at both ends of the rocker beam along the length direction of the vehicle body.

[0012] The side mounting component further includes a third side mounting component and a fourth side mounting component. The third side mounting component corresponds to and is connected to the position of the front longitudinal beam, and the fourth side mounting component corresponds to and is connected to the position of the rear longitudinal beam.

[0013] Optionally, the battery pack further includes: battery cells disposed within the tray;

[0014] The first frame includes a first connecting portion and a second connecting portion that are sequentially arranged and connected to each other along the center to the edge of the tray. The first connecting portion abuts against the battery cell to limit the battery cell, and the side mounting member is disposed on the second connecting portion.

[0015] Optionally, the second connecting portion has a first side and a second side disposed opposite to each other along the width direction of the vehicle body, with the second side close to the first connecting portion;

[0016] Along the direction from the second side to the first side, the dimension of the second connecting portion in the height direction of the vehicle body decreases.

[0017] Optionally, the side mounting component includes: a connecting sleeve, a first connecting member, and a plug;

[0018] The connecting sleeve passes through the second connecting part along the height direction of the vehicle body. The connecting sleeve includes a first end and a second end that are set opposite to each other, with the first end close to the crossbeam.

[0019] The first connector is disposed inside the connecting sleeve and is movably connected to the first end. The first connector is used to be fixedly connected to the crossbeam.

[0020] The plug is sealed to the second end.

[0021] Optionally, the crossbeam includes: a beam body and a second connecting member;

[0022] The beam body has a cavity and a connection hole is provided at the corresponding position of the first connector;

[0023] The second connector is disposed within the cavity and corresponds to the position of the connecting hole;

[0024] The first connector passes through the connecting hole and is fixedly connected to the second connector.

[0025] Optionally, the crossbeam further includes a first structural reinforcement member, which is disposed within the cavity and located between the second connector and the inner wall of the beam.

[0026] Optionally, the first connector is a nut, and the second connector is a bolt.

[0027] Optionally, the vehicle body further includes: a floor, the floor being disposed below the crossbeam and fixedly connected to the crossbeam and the sill beam, the floor having an opening at a corresponding position of the battery pack;

[0028] The battery pack is disposed below the floor, and at least a portion of the battery pack blocks the opening.

[0029] Optionally, the battery pack further includes a sealing cover disposed on the side of the tray near the floor, the sealing cover blocking the opening.

[0030] Optionally, the vehicle further includes a seal disposed between the floor and the battery pack and surrounding the opening.

[0031] Optionally, the sealing element includes: a first sealing portion and a second sealing portion, wherein the first sealing portion extends along the length direction of the vehicle body and is disposed between the floor and the first frame, and the second sealing portion extends along the width direction of the vehicle body and is disposed between the floor and the sealing cover.

[0032] Optionally, the first frame further includes: a third connecting portion, the third connecting portion being disposed on the side of the second connecting portion opposite to the first connecting portion;

[0033] The first sealing part is disposed between the floor and the third connecting part.

[0034] In this embodiment, the first frame of the tray is provided with multiple side mounting members, and at least some of the side mounting members are connected to the crossbeam located inside the sill beam. Thus, for CTB battery packs with low driving range, compared to connecting the side mounting members to the left and right sill beams closest to the outermost part of the vehicle body, connecting the side mounting members to the crossbeam located inside the sill beam allows the mounting position to be moved inward, thereby reducing the overall thickness of the first frame. This not only achieves vehicle weight reduction but also reduces vehicle materials and lowers vehicle production costs. Simultaneously, it reduces the space requirement of the battery pack in the vehicle body width direction, thereby freeing up more space for arranging pipes, wiring harnesses, and other components.

[0035] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1This is one of the partial structural schematic diagrams of a vehicle provided in the embodiments of this application;

[0038] Figure 2 This is a second partial structural schematic diagram of a vehicle provided in an embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the battery pack structure provided in the embodiments of this application;

[0040] Figure 4 This is a structural schematic diagram of the side mounting component provided in an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the structure of the first end mounting component provided in the embodiments of this application;

[0042] Figure 6 This is a schematic diagram of the structure of the second end mounting component provided in the embodiments of this application.

[0043] Reference numerals: 1. Vehicle body, 11. Sill beam, 12. Front crossbeam, 13. Rear crossbeam, 14. Front longitudinal beam, 15. Rear longitudinal beam, 16. Floor, 161. Opening, 17. Lower front crossbeam of the middle floor, 2. Battery pack, 21. Tray, 211. First frame, 2111. First connecting part, 2112. Second connecting part, 2113. Third connecting part, 212. Second frame, 22. Sealing cover, 3. Side mounting piece, 31. First side mounting piece. 32. Second side mounting component, 33. Third side mounting component, 34. Fourth side mounting component, 35. Connecting sleeve, 36. First connecting component, 37. Plug, 38. Second connecting component, 39. First structural reinforcement, 4. End mounting component, 41. First end mounting component, 42. Second end mounting component, 43. Third connecting component, 44. Fourth connecting component, 45. Second structural reinforcement, 5. Sealing component, 51. First sealing part, 52. Second sealing part. Detailed Implementation

[0044] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0045] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In the related technology, the vehicle includes a body and a CTB battery pack (hereinafter referred to as the battery pack). The body includes two sill beams spaced apart along the width direction of the body. The battery pack includes a tray. The tray includes two first frame edges spaced apart along the width direction of the body. The first frame edges are provided with multiple mounting parts. The mounting parts are fixedly connected to the inner plate of the sill beams, thereby achieving reliable fixation of the battery pack.

[0049] When high-range and low-range battery packs share a tray, meaning all mounting components are fixedly connected to the sill beam, the high-range battery pack requires more cells and occupies more space in the vehicle width direction. To meet the cell boundary requirements, the cell loading boundary (i.e., the inner edge of the first frame) is farther from the center of the tray, resulting in a smaller thickness of the first frame in the vehicle width direction. Conversely, the low-range battery pack requires fewer cells and occupies less space in the vehicle width direction. While meeting the cell boundary requirements, the cell loading boundary (i.e., the inner edge of the first frame) is closer to the center of the tray, resulting in a larger thickness of the first frame in the vehicle width direction. Thus, for the low-range battery pack, the increased overall thickness of the first frame leads to a corresponding increase in vehicle weight and production costs, contradicting the industry's trend towards lightweight and low-cost design. Furthermore, to simultaneously meet the installation strength requirements of both high-range and low-range battery packs, related technologies typically require eleven mounting components for each first frame.

[0050] This application provides a vehicle, which will be described in detail below with reference to the accompanying drawings.

[0051] Reference Figures 1-2 This illustration shows a partial structural diagram of a vehicle according to an embodiment of this application. (Refer to...) Figure 3 The diagram shows a schematic representation of the battery pack provided in an embodiment of this application. Figure 4 The diagram shows a structural schematic of the side mounting component provided in an embodiment of this application. (Refer to...) Figure 5 The diagram shows a structural schematic of the first end mounting member provided in an embodiment of this application. (Refer to...) Figure 6 The diagram shows a schematic representation of the structure of the second end mount provided in an embodiment of this application.

[0052] like Figures 1-2 As shown, this application provides a vehicle, including: a body 1 and a battery pack 2; the body 1 includes a sill beam 11 and a crossbeam connected to the inner side of the sill beam 11; the battery pack 2 includes a tray 21, the tray 21 including a first frame 211, the first frame 211 being provided with a plurality of side mounting members 3, at least some of the side mounting members 3 being connected to the crossbeam. It is understood that the inner side of the sill beam 11 refers to the side of the sill beam 11 closest to the center of the body 1.

[0053] In this embodiment, the first frame 211 of the tray 21 is provided with multiple side mounting members 3, and at least some of the side mounting members 3 are connected to the crossbeam located inside the sill beam 11. Thus, for the CTB battery pack 2 with a low driving range, compared to connecting the side mounting members 3 to the left and right sill beams 11 closest to the outermost part of the vehicle body 1, connecting the side mounting members 3 to the crossbeam located inside the sill beam 11 allows the mounting position to be moved inward, thereby reducing the overall thickness of the first frame 211. This not only achieves vehicle weight reduction but also reduces vehicle materials and lowers vehicle production costs. Simultaneously, it also reduces the space requirement of the battery pack 2 in the width direction Y of the vehicle body 1, thereby freeing up more space for arranging pipes, wiring harnesses, and other components.

[0054] In one embodiment, two sill beams 11 are provided, and the two sill beams 11 are spaced apart along the width direction of the vehicle body 1. A crossbeam extends along the width direction of the vehicle body 1 and its two ends are respectively connected to the inner sides of the two sill beams 11. Correspondingly, two first frame frames 211 are provided, and the two first frame frames 211 are spaced apart along the width direction of the vehicle body 1. At least a portion of the side mounting members 3 of the two first frame frames 211 are connected to the crossbeam.

[0055] It should be noted that in the accompanying drawings of this application, "X" refers to the length direction of the vehicle body 1, "Y" refers to the width direction of the vehicle body 1, and "Z" refers to the height direction of the vehicle body 1. Furthermore, the tray 21 also includes two second frame borders 212 spaced apart along the length direction X of the vehicle body 1. The second frame borders 212 are connected end-to-end with the first frame border 211 to form a cavity for accommodating the battery cells. To improve the reliability of the battery pack 2's fixation in the length direction X of the vehicle body 1, the second frame borders 212 are provided with at least one end mounting member 4. The end mounting member 4 in this embodiment has the same placement and specific structure as the end mounting member 4 in related technologies, and can be configured with reference to related technologies. It is understood that in this embodiment, "side mounting member 3" refers to the mounting member located on both sides of the width direction Y of the vehicle body 1, i.e., the left and / or right sides of the vehicle body 1, and "end mounting member 4" refers to the mounting member located at both ends of the length direction X of the vehicle body 1, i.e., the front and / or rear ends of the vehicle body 1.

[0056] In some optional embodiments of this application, the crossbeam includes a front crossbeam 12 and a rear crossbeam 13 spaced apart along the length X of the vehicle body 1; the side mounting member 3 includes a first side mounting member 31 and a second side mounting member 32, the first side mounting member 31 being positioned and connected to the front crossbeam 12, and the second side mounting member 32 being positioned and connected to the rear crossbeam 13. In one embodiment, the front crossbeam 12 may be a front crossbeam of the front seat, and the rear crossbeam 13 may be a rear crossbeam of the front seat.

[0057] In this embodiment, the first side mounting member 31 and the second side mounting member 32 are provided. The first side mounting member 31 is connected to the front crossbeam 12, and the second side mounting member 32 is connected to the rear crossbeam 13. This allows for multi-point fixation of the battery pack 2 along the length X direction of the vehicle body 1, which is beneficial to improving the structural stability and safety of the battery pack 2 and even the vehicle.

[0058] In some optional embodiments of this application, the vehicle body 1 further includes: a front longitudinal beam 14 and a rear longitudinal beam 15, which are disposed at both ends of the sill beam 11 along the length direction X of the vehicle body 1; the side mounting member 3 further includes a third side mounting member 33 and a fourth side mounting member 34, the third side mounting member 33 corresponding to and connected to the front longitudinal beam 14, and the fourth side mounting member 34 corresponding to and connected to the rear longitudinal beam 15. It is understood that there are two front longitudinal beams 14 and two rear longitudinal beams 15, and one front longitudinal beam 14 and one rear longitudinal beam 15 are disposed at both ends of a sill beam 11 along the length direction X of the vehicle body 1.

[0059] Specifically, the front longitudinal beam 14 includes a rear section of the front longitudinal beam near the sill beam 11, the rear longitudinal beam 15 includes a front section of the rear longitudinal beam near the sill beam 11, the third side mounting member 33 corresponds to and is connected to the rear section of the front longitudinal beam, and the fourth side mounting member 34 corresponds to and is connected to the front section of the rear longitudinal beam.

[0060] In this embodiment, a third side mounting member 33 and a fourth side mounting member 34 are provided. The third side mounting member 33 is connected to the rear section of the front longitudinal beam, and the fourth side mounting member 34 is connected to the front section of the rear longitudinal beam. This increases the number of fixing points, thereby further improving the fixing reliability of the battery pack 2. Furthermore, since the front longitudinal beam 14 and the rear longitudinal beam 15 transmit and disperse collision energy, the connection between the battery pack 2 and the front and rear longitudinal beams allows the forces acting on the front and rear longitudinal beams to be transmitted to the battery pack 2. This incorporates the battery pack 2 into the force transmission path, effectively reducing the risk of collision damage.

[0061] It should be noted that the connection method between the side mounting component 3 and the vehicle body 1 (including the front crossbeam 12, rear crossbeam 13, front longitudinal beam 14, and rear longitudinal beam 15) in this embodiment includes, but is not limited to, a fixed connection. Those skilled in the art can adjust this connection according to actual needs. In one embodiment, such as... Figure 3As shown, each first frame 211 is provided with four side mounting parts 3, namely, a first side mounting part 31, a second side mounting part 32, a third side mounting part 33, and a fourth side mounting part 34. The first side mounting part 31 is fixedly connected to the front crossbeam of the front seat, the second side mounting part 32 is fixedly connected to the rear crossbeam of the front seat, the third side mounting part 33 is fixedly connected to the rear section of the front longitudinal beam, and the fourth side mounting part 34 is fixedly connected to the front section of the rear longitudinal beam. That is, each first frame 211 is provided with four side mounting parts 3 to meet the installation strength of the low range battery pack 2. Compared with the eleven mounting parts in the first frame 211 in the related technology, the number of side mounting parts 3 can be greatly reduced. This is not only conducive to further weight reduction of the vehicle, but also to further reduce vehicle materials and reduce vehicle production costs.

[0062] Furthermore, to improve the fixation reliability of the battery pack 2 in the length direction X of the vehicle body 1, two end mounting pieces 4 are provided. The two end mounting pieces 4 are respectively disposed on two second frame sides 212. The end mounting piece 4 disposed on the second frame side 212 near the front end of the vehicle body 1 is the first end mounting piece 41, and the end mounting piece 4 disposed on the second frame side 212 near the rear end of the vehicle body 1 is the second end mounting piece 42. The first end mounting piece 41 corresponds to and is fixedly connected to the rear section of the front longitudinal beam, and the second end mounting piece 42 corresponds to and is fixedly connected to the front lower crossbeam 17 of the middle floor. Figures 5-6 As shown, the first end mounting member 41 includes a third connector 43, and the rear section of the front longitudinal beam includes a second structural reinforcement 45 and a fourth connector 44. The fourth connector 44 is disposed inside the rear section of the front longitudinal beam, and the second structural reinforcement 45 is disposed between the fourth connector 44 and the inner wall of the rear section of the front longitudinal beam. At least a portion of the third connector 43 passes through the rear section of the front longitudinal beam and the second structural reinforcement 45 and is connected to the fourth connector 44. The second end mounting member 42 includes a third connector 43, and the lower front crossbeam 17 of the middle floor includes a second structural reinforcement 45 and a fourth connector 44. The fourth connector 44 is disposed inside the lower front crossbeam 17 of the middle floor, and the second structural reinforcement 45 is disposed between the fourth connector 44 and the inner wall of the lower front crossbeam 17 of the middle floor. At least a portion of the third connector 43 passes through the lower front crossbeam 17 of the middle floor and the second structural reinforcement 45 and is connected to the fourth connector 44. The third connector 43 is a bolt, and the fourth connector 44 is a nut.

[0063] In some optional embodiments of this application, the battery pack 2 further includes: a battery cell disposed in the tray 21; the first frame 211 includes a first connecting portion 2111 and a second connecting portion 2112 arranged sequentially from the center to the edge of the tray 21 and connected to each other, the first connecting portion 2111 abutting against the battery cell to limit the battery cell, and the side mounting member 3 disposed on the second connecting portion 2112.

[0064] In this embodiment, the first connecting part 2111 is provided, which abuts against the battery cell to limit the battery cell and effectively prevent it from shaking or shifting within the tray 21. The second connecting part 2112 is provided, and the side mounting member 3 is disposed on the second connecting part 2112, which not only effectively utilizes the space in the width direction Y of the vehicle body 1 but also improves the ease of installation and removal of the side mounting member 3.

[0065] In some optional embodiments of this application, the second connecting portion 2112 has a first side and a second side that are disposed opposite to each other along the width direction Y of the vehicle body 1, with the second side close to the first connecting portion 2111; along the direction from the second side to the first side, the size of the second connecting portion 2112 in the height direction Z of the vehicle body 1 is reduced, that is, the height of the second connecting portion 2112 is reduced.

[0066] In this embodiment, the height of the second connecting portion 2112 is reduced along the direction from the second side to the first side. This reduces the material required for the tray 21, facilitating further weight and cost reduction for the battery pack 2 and the vehicle. Furthermore, it allows for the formation of a buffer energy-absorbing space on the side near the sill beam 11, enabling greater intrusion in the width direction Y of the vehicle body 1, thus improving the safety of the battery pack 2, the vehicle, and its occupants. Simultaneously, the buffer energy-absorbing space can also be used to arrange pipes, wiring harnesses, and other components, improving the vehicle's space utilization.

[0067] It should be noted that the embodiments of this application do not limit the projection shape of the second connecting part 2112 in the length direction X of the vehicle body 1, and those skilled in the art can adjust it according to actual needs. In one embodiment, the projection of the second connecting part 2112 in the length direction X of the vehicle body 1 is a right trapezoid. This not only gives the second connecting part 2112 sufficient structural strength to improve the fixing reliability of the battery pack 2, but also forms a larger buffer energy absorption space, which is beneficial to improving the safety of the battery pack 2, the vehicle, and the occupants.

[0068] The following is in conjunction with the appendix Figure 4 The specific structure of the side mounting member 3 will be described in detail below. It is understood that the four side mounting members 3 (i.e., the first side mounting member 31, the second side mounting member 32, the third side mounting member 33, and the fourth side mounting member 34) provided on the first frame 211 have the same structure. In this embodiment, the side mounting member 3 connected to the crossbeam (including the front crossbeam 12 and the rear crossbeam 13) is described in detail as an example. The side mounting members 3 connected to the front longitudinal beam 14 and / or the rear longitudinal beam 15 can be set with reference, and will not be described in detail here.

[0069] In some alternative embodiments of this application, such as Figure 4As shown, the side mounting component 3 includes: a connecting sleeve 35, a first connecting member 36, and a plug 37; the connecting sleeve 35 passes through the second connecting portion 2112 along the height direction Z of the vehicle body 1, and the connecting sleeve 35 includes a first end and a second end that are opposite to each other, with the first end close to the crossbeam; the first connecting member 36 is disposed inside the connecting sleeve 35 and is movably connected to the first end, and the first connecting member 36 is used for fixed connection with the crossbeam; the plug 37 is sealed to the second end. Specifically, the first connecting member 36 and the first end, and the plug 37 and the second end are both connected by threaded engagement.

[0070] In this embodiment, the connecting sleeve 35, the first connecting member 36, and the plug 37 are provided. The first connecting member 36 is movably connected to the first end of the connecting sleeve 35, allowing the first connecting member 36 to move relative to the connecting sleeve 35, thus enabling the first connecting member 36 to connect and disconnect from the crossbeam. The plug 37 is sealed to the second end of the connecting sleeve 35, forming a closed cavity. This prevents moisture, dust, and other impurities from entering the crossbeam from the connection point of the side mounting member 3. This not only avoids corrosion of the crossbeam, improving the overall structural strength and durability of the vehicle body 1, but also prevents impurities from entering the passenger compartment, improving passenger comfort. In one embodiment, the plug 37 is a rubber plug 37. The elastic deformation of the rubber plug 37 improves the sealing effect at the connection point between the rubber plug 37 and the second end.

[0071] In some optional embodiments of this application, the crossbeam includes: a beam body and a second connecting member 38; a cavity is formed in the beam body and a connecting hole is provided at a corresponding position of the first connecting member 36; the second connecting member 38 is disposed in the cavity and corresponds to the position of the connecting hole; the first connecting member 36 passes through the connecting hole and is fixedly connected to the second connecting member 38.

[0072] In this embodiment, the second connector 38, through its cooperation with the first connector 36, reliably connects the first frame 211 to the beam body. It should be noted that the second connector 38 can be pre-installed during beam manufacturing, thus simplifying on-site installation. In one embodiment, the first connector 36 is a nut, and the second connector 38 is a bolt; the threaded connection between the bolt and nut achieves a reliable connection between the first frame 211 and the beam body.

[0073] In some optional embodiments of this application, the crossbeam further includes a first structural reinforcement 39, which is disposed within the cavity and located between the second connector 38 and the inner wall of the beam. It is understood that the first structural reinforcement 39 has a through hole at the corresponding position of the connecting hole, so that the first connector 36 and the second connector 38 can be connected.

[0074] In this embodiment, by providing a first structural reinforcement 39 between the second connector 38 and the inner wall of the beam, not only can the stress on the beam be dispersed and stress concentration reduced, but the structural strength of the beam itself can also be enhanced, which is beneficial to improving the fixing reliability and stability of the battery pack 2. In one embodiment, the beam includes a top plate and a bottom plate arranged opposite to each other. The first structural reinforcement 39 includes a fixing part and two extension parts, which are disposed on opposite sides of the fixing part, and the end of the extension part away from the fixing part extends to the top plate. The fixing part is welded to the inner wall of the bottom plate, and the second connector 38 is welded to the side of the fixing part away from the bottom plate.

[0075] In practical applications, there is a gap between the floor 16 and the sealing cover 22 of the battery pack 2, resulting in low utilization of the vehicle's Z-axis (height direction Z of the vehicle body 1) space. Therefore, in some optional embodiments of this application, the vehicle body 1 further includes: a floor 16, which is disposed below the crossbeam and fixedly connected to the crossbeam and the sill beam 11; the floor 16 has an opening 161 at a corresponding position on the battery pack 2; the battery pack 2 is disposed below the floor 16, and at least a portion of the battery pack 2 blocks the opening 161. Specifically, the battery pack 2 also includes a sealing cover 22, which is disposed on the side of the tray 21 near the floor 16, and blocks the opening 161.

[0076] In this embodiment, since the floor 16 is provided with an opening 161, the opening 161 is blocked by the sealing cover 22, and the sealing cover 22 can be used as part of the floor 16. In this way, on the one hand, the weight of the vehicle body 1 can be further reduced, and the vehicle can be further lightweighted; on the other hand, the gap between the floor 16 and the sealing cover 22 can be reduced, the utilization rate of the vehicle's Z-axis space can be improved, and the ground clearance of the battery pack 2 and the vehicle's passability can be improved.

[0077] Understandably, to improve the sealing effect, the sealing cover 22 should at least cover the opening 161, meaning the opening 161 should be located within the projection range of the sealing cover 22 in the height direction Z of the vehicle body 1. For better integration with the floor 16, the sealing cover 22 can be configured as a flat plate. It should be noted that the floor 16 can be integrally molded with the sealing cover 22, or it can be a separate molded structure. Understandably, when the floor 16 and the sealing cover 22 are integrally molded, the assembly process between the vehicle body 1 and the battery pack 2 can be simplified.

[0078] In some alternative embodiments of this application, the vehicle further includes a seal 5 disposed between the floor 16 and the battery pack 2 and surrounding the opening 161. Specifically, as Figures 4-6As shown, the sealing element 5 includes a first sealing part 51 and a second sealing part 52. The first sealing part 51 extends along the length direction X of the vehicle body 1 and is disposed between the floor 16 and the first frame 211. The second sealing part 52 extends along the width direction Y of the vehicle body 1 and is disposed between the floor 16 and the sealing cover 22.

[0079] In this embodiment, by providing a sealing element 5, after the battery pack 2 is assembled, the floor 16 can press the sealing element 5 against the first frame 211 and the sealing cover 22 of the battery pack 2, thereby achieving a sealed connection between the battery pack 2 and the floor 16, which helps to improve the airtightness of the passenger compartment. In one embodiment, the sealing element 5 is a foam sealing element.

[0080] Furthermore, the first frame 211 also includes: a third connecting portion 2113, which is disposed on the side of the second connecting portion 2112 opposite to the first connecting portion 2111; and a first sealing portion 51 disposed between the floor 16 and the third connecting portion 2113. Thus, by disposing the first sealing portion 51 between the third connecting portion 2113 and the floor 16, the side mounting member 3 can be located within the sealing range of the sealing member 5, effectively preventing moisture, dust, and other impurities from entering the passenger compartment from the side mounting member 3.

[0081] In summary, the vehicle provided in this application embodiment has at least the following advantages:

[0082] In this embodiment, the first frame of the tray is provided with multiple side mounting members, and at least some of the side mounting members are connected to the crossbeam located inside the sill beam. Thus, for CTB battery packs with low driving range, compared to connecting the side mounting members to the left and right sill beams closest to the outermost part of the vehicle body, connecting the side mounting members to the crossbeam located inside the sill beam allows the mounting position to be moved inward, thereby reducing the overall thickness of the first frame. This not only achieves vehicle weight reduction but also reduces vehicle materials and lowers vehicle production costs. Simultaneously, it reduces the space requirement of the battery pack in the vehicle body width direction, thereby freeing up more space for arranging pipes, wiring harnesses, and other components.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle, characterized in that, Includes: vehicle body and battery pack; The vehicle body includes a sill beam and a crossbeam connected to the inside of the sill beam; The battery pack includes a tray, the tray includes a first frame, the first frame is provided with a plurality of side mounting members, at least some of the side mounting members are connected to the crossbeam.

2. The vehicle according to claim 1, characterized in that, The crossbeam includes a front crossbeam and a rear crossbeam spaced apart along the length of the vehicle body; The side mounting component includes a first side mounting component and a second side mounting component. The first side mounting component corresponds to and is connected to the position of the front crossbeam, and the second side mounting component corresponds to and is connected to the position of the rear crossbeam.

3. The vehicle according to claim 1 or 2, characterized in that, The vehicle body also includes a front longitudinal beam and a rear longitudinal beam, which are disposed at both ends of the sill beam along the length of the vehicle body; The side mounting component further includes a third side mounting component and a fourth side mounting component. The third side mounting component corresponds to and is connected to the position of the front longitudinal beam, and the fourth side mounting component corresponds to and is connected to the position of the rear longitudinal beam.

4. The vehicle according to claim 1, characterized in that, The battery pack further includes: battery cells, which are disposed within the tray; The first frame includes a first connecting portion and a second connecting portion that are sequentially arranged and connected to each other along the center to the edge of the tray. The first connecting portion abuts against the battery cell to limit the battery cell, and the side mounting member is disposed on the second connecting portion.

5. The vehicle according to claim 4, characterized in that, The second connecting portion has a first side and a second side that are disposed opposite to each other along the width direction of the vehicle body, with the second side being close to the first connecting portion; Along the direction from the second side to the first side, the dimension of the second connecting portion in the height direction of the vehicle body decreases.

6. The vehicle according to claim 4, characterized in that, The side mounting component includes: a connecting sleeve, a first connecting member, and a plug; The connecting sleeve passes through the second connecting part along the height direction of the vehicle body. The connecting sleeve includes a first end and a second end that are set opposite to each other, with the first end close to the crossbeam. The first connector is disposed inside the connecting sleeve and is movably connected to the first end. The first connector is used to be fixedly connected to the crossbeam. The plug is sealed to the second end.

7. The vehicle according to claim 6, characterized in that, The crossbeam includes: a beam body and a second connecting member; The beam body has a cavity and a connection hole is provided at the corresponding position of the first connector; The second connector is disposed within the cavity and corresponds to the position of the connecting hole; The first connector passes through the connecting hole and is fixedly connected to the second connector.

8. The vehicle according to claim 7, characterized in that, The crossbeam further includes a first structural reinforcement member, which is disposed within the cavity and located between the second connector and the inner wall of the beam.

9. The vehicle according to claim 7 or 8, characterized in that, The first connecting component is a nut, and the second connecting component is a bolt.

10. The vehicle according to claim 4, characterized in that, The vehicle body also includes: a floor, which is disposed below the crossbeam and fixedly connected to the crossbeam and the sill beam, and the floor has an opening at the corresponding position of the battery pack; The battery pack is disposed below the floor, and at least a portion of the battery pack blocks the opening.

11. The vehicle according to claim 10, characterized in that, The battery pack further includes a sealing cover disposed on the side of the tray near the floor, the sealing cover sealing the opening.

12. The vehicle according to claim 11, characterized in that, The vehicle also includes a seal disposed between the floor and the battery pack and surrounding the opening.

13. The vehicle according to claim 12, characterized in that, The sealing element includes: a first sealing portion and a second sealing portion, wherein the first sealing portion extends along the length direction of the vehicle body and is disposed between the floor and the first frame, and the second sealing portion extends along the width direction of the vehicle body and is disposed between the floor and the sealing cover.

14. The vehicle according to claim 13, characterized in that, The first frame further includes: a third connecting portion, the third connecting portion being disposed on the side of the second connecting portion opposite to the first connecting portion; The first sealing part is disposed between the floor and the third connecting part.

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