Frame assembly and vehicle

Abstract

The utility model discloses a vehicle frame assembly and a vehicle, the vehicle frame assembly comprises a vehicle frame, the vehicle frame comprises longitudinally spaced cross beams and transversely spaced longitudinal beams, and the cross beams are connected between the longitudinal beams and jointly form a closed battery frame; the top cover is connected to the upper side of the battery frame; the battery comprises a battery cell and a tray, the battery cell is mounted on the upper side of the tray, and the tray is connected to the lower side of the battery frame; wherein the top cover, the battery frame and the tray jointly define an accommodating cavity of the battery cell. Therefore, through the arrangement of the frame assembly, the battery frame can be integrated on the frame, so that the battery arrangement space is increased, the anti-bending and anti-torsional rigidity of the frame is improved, and the battery electric quantity and the control stability of the whole vehicle are improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a chassis assembly and a vehicle. Background Technology

[0002] In related technologies, current battery packs are generally installed at the bottom of the vehicle body. The placement of battery packs on the vehicle is limited by the surrounding body, frame and ground clearance. Moreover, the battery pack needs to meet the structural strength requirements to protect itself within a limited space. In traditional solutions, the frame and battery pack are independent structures, which occupy a lot of space and are not conducive to the placement of more batteries, thus leading to poor vehicle range. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a vehicle frame assembly that integrates the battery frame onto the vehicle frame, thereby increasing the battery placement space and improving the bending and torsional stiffness of the frame, thereby improving the overall battery capacity and handling stability of the vehicle.

[0004] This utility model further proposes a vehicle.

[0005] According to a first aspect of the present invention, a vehicle frame assembly includes: a frame, the frame including longitudinally spaced crossbeams and laterally spaced longitudinal beams, the crossbeams being connected between the longitudinal beams and together forming a closed battery frame; a top cover, the top cover being connected to the upper side of the battery frame; and a battery, the battery including a cell and a tray, the cell being mounted on the upper side of the tray, and the tray being connected to the lower side of the battery frame; wherein the top cover, the battery frame, and the tray together enclose a cavity for receiving the cell.

[0006] Therefore, by setting up this frame assembly, the battery frame can be integrated into the frame, thereby increasing the battery placement space and improving the frame's bending and torsional stiffness, which in turn improves the overall battery capacity and handling stability of the vehicle.

[0007] In some examples of this utility model, the longitudinal beam includes: a front straight beam extending in the front-to-back direction; a rear straight beam disposed behind the front straight beam; a middle straight beam disposed between the front and rear straight beams, wherein in the left-to-right direction, the lateral spacing between the middle straight beams is greater than the lateral spacing between the front straight beams, and the lateral spacing between the middle straight beams is greater than the lateral spacing between the rear straight beams; a front inclined beam bent and connected between the front and middle straight beams; and a rear inclined beam bent and connected between the middle and rear straight beams; wherein the front crossbeam is connected between the front inclined beams, and the rear crossbeam is connected between the rear inclined beams.

[0008] In some examples of this utility model, the frame assembly further includes: at least one reinforcing diagonal beam, which extends obliquely and connects between the crossbeam and the longitudinal beam; wherein, along the front-rear direction, at least one of the reinforcing diagonal beams and the crossbeam are respectively connected to both sides of the connection between the front straight beam and the front diagonal beam.

[0009] In some examples of this utility model, the frame assembly further includes: a reinforcing crossbeam extending laterally, the reinforcing crossbeam being disposed within the receiving cavity and connected between the longitudinal beams; and a reinforcing longitudinal beam extending longitudinally, the reinforcing longitudinal beam being disposed within the receiving cavity and connected between the crossbeam and the reinforcing crossbeam on the side near the reinforcing crossbeam.

[0010] In some examples of this utility model, the battery cell is arranged in multiple layers along the vertical direction, the multiple layers of battery cell including a first layer of battery cell and a second layer of battery cell, the first layer of battery cell being located above the second layer of battery cell, and the length of the first layer of battery cell being less than the length of the second layer of battery cell along the front-back direction; wherein, the first layer of battery cell, the second layer of battery cell and the battery frame together form a clearance space, and the reinforcing crossbeam and the reinforcing longitudinal beam are located within the clearance space.

[0011] In some examples of this utility model, the frame assembly further includes: a reinforcing diagonal beam that extends obliquely in the front-rear direction, one end of the reinforcing diagonal beam being connected to the crossbeam and the other end being connected to the longitudinal beam in a direction away from the battery cell; wherein the connection between the reinforcing diagonal beam and the crossbeam corresponds to the connection between the reinforcing longitudinal beam and the crossbeam in the front-rear position of the crossbeam.

[0012] In some examples of this utility model, at least one edge on the outer periphery of the tray has an upward protrusion, and the lower side of the battery frame has an upward recess, with the protrusion and the recess engaging in a limiting fit.

[0013] In some examples of this utility model, the protrusion is constructed from bottom to top along its length direction as narrow on both sides and wide in the middle, and an interface hole is provided in the middle of the protrusion.

[0014] In some examples of this utility model, the outer peripheral edge of the tray is provided with a vertically penetrating mounting hole, and fasteners pass through the mounting hole and the battery frame to connect the tray and the vehicle frame into a whole.

[0015] The vehicle according to the second aspect of this utility model includes: the aforementioned frame assembly.

[0016] 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

[0017] 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:

[0018] Figure 1 This is a top view of the frame assembly according to an embodiment of the present utility model;

[0019] Figure 2 This is a bottom view of the frame assembly according to an embodiment of the present utility model;

[0020] Figure 3 This is an exploded view of the vehicle frame assembly according to an embodiment of the present utility model;

[0021] Figure 4 This is a structural schematic diagram of the vehicle frame according to an embodiment of the present utility model;

[0022] Figure 5 This is a top view of a battery according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the battery structure according to an embodiment of the present utility model;

[0024] Figure 7 This is a left view of a battery according to an embodiment of the present utility model;

[0025] Figure 8 This is a partial structural schematic diagram of a battery according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 100. Chassis assembly;

[0028] 1. Frame; 11. Crossbeam; 12. Longitudinal beam; 121. Front straight beam; 122. Rear straight beam; 123. Middle straight beam; 124. Front diagonal beam; 125. Rear diagonal beam; 13. Battery frame; 131. Recess;

[0029] 2. Top cover;

[0030] 3. Battery; 31. Battery cell; 32. Tray; 321. Protrusion; 322. Interface hole; 33. Receiving cavity; 34. Clearance space;

[0031] 4. Strengthen the diagonal beams; 5. Strengthen the horizontal beams; 6. Strengthen the longitudinal beams. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0033] The following is for reference. Figures 1-8 The vehicle frame assembly 100 according to an embodiment of the present utility model can integrate the battery frame 13 onto the vehicle frame 1, thereby increasing the battery 3 placement space and improving the bending and torsional stiffness of the vehicle frame 1, thereby improving the battery 3 capacity and handling stability of the whole vehicle.

[0034] Combination Figures 1-8 As shown, the vehicle frame assembly 100 according to the first aspect of this utility model includes a frame 1, a roof 2, and a battery 3. The frame 1 is the main supporting structure of the vehicle, providing support for components such as the battery 3, suspension system, and transmission system. It also absorbs impact energy during a collision, protecting the safety of the passenger compartment, and serves as a mounting base for related components. The battery 3 stores electrical energy from a charging power source and serves as the driving energy for the vehicle.

[0035] Specifically, the frame 1 includes longitudinally spaced crossbeams 11 and laterally spaced longitudinal beams 12. The crossbeams 11 are connected between the longitudinal beams 12, and the crossbeams 11 and longitudinal beams 12 together form a closed battery frame 13. The top cover 2 is connected to the upper side of the battery frame 13. The battery 3 includes a cell 31 and a tray 32. The cell 31 is mounted on the upper side of the tray 32, and the tray 32 is connected to the lower side of the battery frame 13. The top cover 2, the battery frame 13, and the tray 32 together enclose a cavity 33 for receiving the cell 31.

[0036] Specifically, the crossbeams 11 are spaced apart in the longitudinal direction (i.e., the front-to-back direction of the vehicle), and the longitudinal beams 12 are spaced apart in the transverse direction (i.e., the left-to-right direction of the vehicle). The crossbeams 11 and longitudinal beams 12 are connected to each other and together form a closed battery frame 13. This allows the crossbeams 11 and longitudinal beams 12 to form a closed force transmission path, which helps to distribute the loads they receive and thus effectively improves the structural reliability of the frame 1. On the other hand, the battery frame 13 can be integrated into the frame 1, so that the battery frame 13 can replace the traditional battery 3 side frame, thereby increasing the placement space of the battery 3 and increasing the battery capacity.

[0037] Furthermore, the top cover 2 and the tray 32 are correspondingly arranged in the vertical direction. The top cover 2 and the tray 32 are respectively connected to the upper and lower sides of the battery 3 frame. Moreover, the top cover 2, the battery frame 13 and the tray 32 together define the receiving cavity 33 of the battery cell 31, which can form an all-round protection effect for the battery cell 31, thereby ensuring the sealing and safety of the battery 3.

[0038] Furthermore, since the top cover 2 and tray 32 are connected to the battery frame 13, the weight and spatial mode of the frame 1 can be increased, thereby improving the structural strength and bending and torsional stiffness of the frame 1, and thus improving the structural reliability and handling stability of the whole vehicle.

[0039] Moreover, compared to the traditional vehicle frame assembly solution (where the battery and frame are independent structures), in this case, the frame 1, tray 32, and top cover 2 work together to provide a sealed frame for the battery cell 31. This arrangement eliminates the traditional battery frame, which can effectively increase the space for the battery cell 31, thereby increasing the battery capacity and thus improving the vehicle's range.

[0040] Therefore, by setting up the frame assembly 100, the battery frame 13 can be integrated into the frame 1, thereby increasing the battery 3 placement space and improving the bending and torsional stiffness of the frame 1, thus improving the battery 3 capacity and handling stability of the whole vehicle.

[0041] According to some optional embodiments of the present invention, combined with Figure 4 As shown, the longitudinal beam 12 includes a front straight beam 121, a rear straight beam 122, a middle straight beam 123, a front inclined beam 124, and a rear inclined beam 125. The front straight beam 121 extends in the front-to-back direction, the rear straight beam 122 is located behind the front straight beam 121, and the middle straight beam 123 is located between the front straight beam 121 and the rear straight beam 122. The front straight beam 121, the front inclined beam 124, the middle straight beam 123, the rear inclined beam 125, and the rear straight beam 122 are connected sequentially from front to back. The front inclined beam 124 and the rear inclined beam 125 can change the extension direction of the front straight beam 121 and the middle straight beam 123 respectively according to the arrangement requirements of the longitudinal beam 12.

[0042] Furthermore, in the left-right direction, the lateral spacing between the middle straight beams 123 is greater than the lateral spacing between the front straight beams 121, and the lateral spacing between the middle straight beams 123 is greater than the lateral spacing between the rear straight beams 122. The front inclined beam 124 is bent and connected between the front straight beams 121 and the middle straight beams 123, and the rear inclined beam 125 is bent and connected between the middle straight beams 123 and the rear straight beams 122. The front crossbeam 11 is connected between the front inclined beams 124, and the rear crossbeam 11 is connected between the rear inclined beams 125.

[0043] As described above, without interfering with the use of the front straight beam 121 and the rear straight beam 122 to connect other components (such as the suspension system or the transmission system), the housing 33 can fully occupy the inner space of the front inclined beam 124 and the rear inclined beam 125, thereby maximizing the space for the battery 3 and increasing the battery capacity and the vehicle's range.

[0044] Specifically, in combination Figure 4As shown, the frame assembly 100 also includes at least one reinforcing diagonal beam 4, which extends obliquely and connects between the crossbeam 11 and the longitudinal beam 12. For example, the reinforcing diagonal beam 4 can connect between the front crossbeam 11 and the front straight beam 121, or between the rear crossbeam 11 and the rear straight beam 122.

[0045] It is understandable that the reinforcing diagonal beam 4 extends obliquely and connects between the crossbeam 11 and the longitudinal beam 12. The three together form a closed force-bearing structure similar to a triangle or ring. This increases the force transmission path between the crossbeam 11 and the longitudinal beam 12, thereby effectively improving the force uniformity and structural stability of the longitudinal beam 12 and the battery frame 13. Moreover, the reinforcing diagonal beam 4 can also increase the weight and spatial modes of the frame 1, thereby improving the structural strength and bending and torsional stiffness of the longitudinal beam 12 and the battery frame 13, and thus improving the structural reliability of the battery frame 13.

[0046] In this configuration, at least one reinforcing diagonal beam 4 and a crossbeam 11 are respectively connected to both sides of the connection between the front straight beam 121 and the front diagonal beam 124 along the front-rear direction. This can effectively disperse the stress at the connection between the front straight beam 121 and the front diagonal beam 124, thereby reducing the risk of stress concentration at the connection between the front straight beam 121 and the front diagonal beam 124 and improving the structural stability of the front diagonal beam 124.

[0047] According to some optional embodiments of the present invention, combined with Figure 4 As shown, the frame assembly 100 also includes a reinforcing crossbeam 5 and a reinforcing longitudinal beam 6. The reinforcing crossbeam 5 extends laterally and is disposed within the receiving cavity 33. The reinforcing crossbeam 5 is connected between the longitudinal beams 12. The reinforcing longitudinal beam 6 extends longitudinally and is disposed within the receiving cavity 33. The reinforcing longitudinal beam 6 is connected between the crossbeam 11 and the reinforcing crossbeam 5 on the side near the reinforcing crossbeam 5.

[0048] The reinforcing crossbeam 5 is longitudinally connected between the longitudinal beams 12, which increases the longitudinal force transmission channel between the longitudinal beams 12 to achieve the effect of distributing the load. It also increases the weight and spatial mode of the battery frame 13, thereby improving the stress uniformity and structural reliability of the battery frame 13. The reinforcing longitudinal beam 6 is longitudinally connected between the crossbeam 11 and the reinforcing crossbeam 5 on the side close to the reinforcing crossbeam 5. This establishes a force transmission channel between the crossbeam 11 and the reinforcing crossbeam 5 in the transverse direction to achieve the effect of distributing the load. It also increases the weight and spatial mode of the battery frame 13, thereby improving the stress uniformity and structural reliability of the battery frame 13.

[0049] Furthermore, as described above, when the vehicle is subjected to a lateral impact collision, the longitudinal beam 12 can directly transfer the force it receives to the reinforcing crossbeam 5 during the collision, or it can transfer the force to the crossbeam 11 through the reinforcing diagonal beam 4, thereby dispersing the impact force received by the longitudinal beam 12, effectively avoiding the problem of bending deformation and insufficient energy absorption of the longitudinal beam 12 during the collision, thus protecting the battery 3 from being squeezed and damaged, and improving the safety of the battery 3.

[0050] Specifically, in combination Figures 3-7 As shown, the battery cell 31 has multiple layers arranged in the vertical direction. The multi-layer battery cell 31 includes a first layer battery cell 31 and a second layer battery cell 31. The first layer battery cell 31 is located above the second layer battery cell 31. In the front-back direction, the length of the first layer battery cell 31 is less than the length of the second layer battery cell 31. The first layer battery cell 31, the second layer battery cell 31 and the battery frame 13 together form a clearance space 34. The reinforcing crossbeam 5 and the reinforcing longitudinal beam 6 are located within the clearance space 34.

[0051] As described above, the reinforcing crossbeam 5 and the reinforcing longitudinal beam 6 are arranged within the clearance space 34. This allows the reinforcing crossbeam 5 and the reinforcing longitudinal beam 6 to structurally reinforce the battery frame 13 while avoiding the risk of interference and collision between the reinforcing crossbeam 5 and the reinforcing longitudinal beam 6 within the receiving cavity 33 and the battery cell 31, thereby improving the rationality of the arrangement.

[0052] Furthermore, combined Figure 3 and Figure 4 As shown, the frame assembly 100 also includes a reinforcing beam 4, which extends obliquely in the front-rear direction. One end of the reinforcing beam 4 is connected to the crossbeam 11, and the other end of the reinforcing beam 4 is connected to the longitudinal beam 12 in a direction away from the battery cell 31.

[0053] For example, the reinforcing diagonal beam 4 connects the front crossbeam 11 and longitudinal beam 12, which can increase the weight and spatial mode of the crossbeam 11 and longitudinal beam 12, thereby improving the structural strength of the frame 1 and the battery frame 13. It can also effectively reduce the risk of the battery 3 being crushed and damaged due to insufficient collision energy absorption at the front of the frame 1, thereby improving the safety of the battery 3 when the vehicle is involved in a collision.

[0054] The connection between the reinforcing diagonal beam 4 and the crossbeam 11 corresponds to the connection between the reinforcing longitudinal beam 6 and the crossbeam 11 in the front and rear positions of the crossbeam 11. This allows the reinforcing diagonal beam 4, the crossbeam 11 and the reinforcing longitudinal beam 6 to form a continuous force transmission path, thereby enabling them to distribute the load more smoothly and thus improve the collision resistance of the frame 1 and the safety of the battery 3.

[0055] According to some optional embodiments of the present invention, combined with Figure 3 and Figure 4As shown, at least one edge of the outer periphery of the tray 32 has an upward protrusion 321, and the lower side of the battery frame 13 has an upward recess 131, with the protrusion 321 and the recess 131 engaging in a limiting fit.

[0056] The protrusion 321 on the outer periphery of the tray 32 and the recess 131 of the battery frame 13 mutually limit and cooperate with each other. This can increase the contact area between the two, thereby improving the tightness of the connection between them. On the other hand, it can also form a limiting effect on each other, avoiding the risk of misalignment between the two in the horizontal or vertical direction, thereby improving the assembly stability and accuracy between them.

[0057] Specifically, in combination Figures 6-8 As shown, the protrusion 321 is constructed from bottom to top along its length in a shape that is narrow at both ends and wide in the middle. This arrangement allows the material to be concentrated in the more critical central position (the main stress area) while reducing the amount of material used at both ends, thereby balancing the structural strength and lightweight design effect of the protrusion 321.

[0058] The protrusion 321 has an interface hole 322 in the middle. This allows for a larger arrangement space for the interface hole 322 by utilizing the larger width of the middle part of the protrusion 321. This facilitates the connection of related pipelines with the battery cell 31 and related components inside the battery frame 13 through the interface hole 322.

[0059] According to some optional embodiments of the present invention, combined with Figure 2 and Figure 5 As shown, the outer periphery of the tray 32 has through-holes running vertically. Fasteners pass through these holes and, together with the battery frame 13, connect the tray 32 to the vehicle frame 1 as a whole. For example, the fasteners can be bolts, but are not limited to this.

[0060] In this embodiment, fasteners connect the tray 32 and the battery frame 13 into a single unit, thereby increasing their weight and spatial modality, thus improving their structural strength and bending / torsional stiffness, and consequently enhancing the protection of the battery cell 31. Furthermore, the tray 32 and battery frame 13 are screwed together. Compared to other connection methods, this embodiment facilitates the disassembly and maintenance of the battery 3 and battery frame 13, improving ease of assembly and disassembly and reducing subsequent maintenance costs.

[0061] According to the second aspect of the present invention, the vehicle includes the frame assembly 100 of the above embodiment. Thus, the vehicle having the frame assembly 100 can integrate the battery frame 13 onto the frame 1, which can increase the placement space of the battery 3, improve the bending and torsional stiffness of the frame 1, thereby increasing the battery capacity and handling stability of the whole vehicle, and thus enhancing market competitiveness.

[0062] 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", "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.

[0063] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] 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., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.

[0065] 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.

[0066] 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., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.

[0067] 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 frame assembly, characterized in that, include: The vehicle frame includes longitudinally spaced crossbeams and laterally spaced longitudinal beams, the crossbeams being connected between the longitudinal beams and together forming a closed battery frame. A top cover, which is attached to the upper side of the battery frame; A battery, comprising a cell and a tray, wherein the cell is mounted on the upper side of the tray and the tray is connected to the lower side of the battery frame; The top cover, the battery frame, and the tray together enclose the cavity for receiving the battery cell.

2. The frame assembly according to claim 1, characterized in that, The longitudinal beam includes: A front straight beam, which extends in the front-to-back direction; A rear straight beam, which is located behind the front straight beam; A central straight beam is disposed between the front straight beam and the rear straight beam. In the left-right direction, the lateral spacing between the central straight beams is greater than the lateral spacing between the front straight beams, and the lateral spacing between the central straight beams is greater than the lateral spacing between the rear straight beams. A front inclined beam, which is bent and connected between the front straight beam and the middle straight beam; A rear inclined beam, which is bent and connected between the middle straight beam and the rear straight beam; The front crossbeam is connected to the front inclined beam, and the rear crossbeam is connected to the rear inclined beam.

3. The frame assembly according to claim 2, characterized in that, Also includes: At least one reinforcing diagonal beam, the reinforcing diagonal beam extending obliquely and connecting between the crossbeam and the longitudinal beam; In this configuration, along the front-to-back direction, at least one of the reinforcing diagonal beams and the crossbeam are respectively connected to both sides of the connection between the front straight beam and the front diagonal beam.

4. The frame assembly according to claim 1, characterized in that, Also includes: A reinforcing crossbeam extends laterally and is disposed within the receiving cavity and connected between the longitudinal beams; A reinforcing longitudinal beam extends longitudinally and is disposed within the receiving cavity, connecting the crossbeam and the reinforcing crossbeam on the side near the reinforcing crossbeam.

5. The frame assembly according to claim 4, characterized in that, The battery cell is provided with multiple layers in the vertical direction. The multiple layers of battery cells include a first layer of battery cells and a second layer of battery cells. The first layer of battery cells is located above the second layer of battery cells. In the front-back direction, the length of the first layer of battery cells is less than the length of the second layer of battery cells. The first layer of battery cells, the second layer of battery cells, and the battery frame together form a clearance space, and the reinforcing crossbeam and the reinforcing longitudinal beam are located within the clearance space.

6. The frame assembly according to claim 4, characterized in that, Also includes: A reinforcing inclined beam extends obliquely in the front-to-back direction, with one end of the reinforcing inclined beam connected to the crossbeam and the other end connected to the longitudinal beam in a direction away from the battery cell; The connection between the reinforcing diagonal beam and the crossbeam corresponds to the connection between the reinforcing longitudinal beam and the crossbeam in the front and rear positions of the crossbeam.

7. The frame assembly according to claim 1, characterized in that, At least one edge on the outer periphery of the tray has an upward protrusion, and the lower side of the battery frame has an upward recess, with the protrusion and the recess engaging in a limiting fit.

8. The frame assembly according to claim 7, characterized in that, The protrusion is constructed from bottom to top along its length, being narrow at both sides and wide in the middle, and an interface hole is provided in the middle of the protrusion.

9. The frame assembly according to claim 1, characterized in that, The outer periphery of the tray is provided with mounting holes that run vertically through it. Fasteners pass through the mounting holes and connect the tray and the vehicle frame as a whole with the battery frame.

10. A vehicle, characterized in that, include: The frame assembly according to any one of claims 1-9.

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