Chassis and vehicle

Abstract

The utility model discloses a chassis and a vehicle. The chassis comprises a longitudinal beam; the battery tray is connected with the two longitudinal beams, and at least one side of the battery tray in the left-right direction is provided with a plurality of first mounting brackets which are arranged at intervals in the front-back direction; second mounting brackets are arranged on the battery mounting cross beam, and the plurality of second mounting brackets are arranged on the battery mounting cross beam at intervals left and right; the battery assembly is arranged in the battery tray, at least one side, in the left-right direction, of the battery assembly is connected with the multiple first mounting supports, and at least one side, in the front-back direction, of the battery assembly is connected with the multiple second mounting supports. Therefore, the plurality of first mounting brackets and the plurality of second mounting brackets are respectively connected with the battery assembly, so that the battery assembly can be subjected to a plurality of connecting forces in the front-back direction and the left-right direction, the stress of the battery assembly can be more uniform, and the arrangement of the battery assembly on the chassis is simpler, more stable and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a chassis and a vehicle. Background Art

[0002] With the development of technology, vehicles are more and more widely used. To ensure the normal operation of vehicles, especially new energy vehicles, a power battery pack needs to be installed on the chassis.

[0003] In the related art, the power battery pack is mostly directly arranged on the chassis of the vehicle. However, due to the limitation of the width of the frame longitudinal beam and the surrounding parts of the chassis, the volume of the battery pack that can be arranged is small, and it is very difficult to arrange a large-capacity battery pack on the chassis, which cannot meet the power requirements of the vehicle. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a chassis in which the installation of the battery assembly is simpler and more reliable.

[0005] The utility model further provides a vehicle.

[0006] The chassis according to the embodiment of the utility model includes: longitudinal beams, which are two and extend in the front-back direction, and the two longitudinal beams are spaced apart in the left-right direction; a battery tray, which is arranged at the rear ends of the two longitudinal beams, is located below the two longitudinal beams and is connected to the two longitudinal beams, and at least one side in the left-right direction of the battery tray is provided with a plurality of first mounting brackets spaced apart in the front-back direction; a battery mounting cross beam, which extends in the left-right direction and is connected to the two longitudinal beams, is spaced apart above the battery tray, and a second mounting bracket is arranged on the battery mounting cross beam, and the second mounting brackets are multiple and are spaced apart in the left-right direction on the battery mounting cross beam; a battery assembly, which is arranged in the battery tray, and at least one side in the left-right direction of the battery assembly is connected to the plurality of first mounting brackets, and at least one side in the front-back direction of the battery assembly is connected to the plurality of second mounting brackets.

[0007] Thus, through the connection between the plurality of first mounting brackets and the plurality of second mounting brackets and the battery assembly respectively, the battery assembly can be subjected to a plurality of connection forces in both the front-back direction and the left-right direction, so that the force on the battery assembly is more uniform, the installation of the battery assembly on the chassis is simpler, and it is more stable and reliable, and the non-intended movement of the battery assembly can be avoided.

[0008] In some examples of the present utility model, a plurality of first mounting brackets are provided on both sides of the battery tray in the left-right direction, and are spaced in the front-back direction. There are two battery mounting crossbeams, and the two battery mounting crossbeams are respectively located on the front and back sides of the battery assembly.

[0009] In some examples of the present utility model, the battery tray includes a bottom plate and side plates. The bottom plate is spaced below the longitudinal beam. A plurality of the side plates are provided on both sides of the bottom plate in the left-right direction and are spaced in the front-back direction. The side plates extend in the up-down direction and the upper ends are connected to the longitudinal beam. One ends of a plurality of the first mounting brackets are fixedly connected to a plurality of the side plates, and the other ends of the plurality of first mounting brackets are connected to the battery assembly.

[0010] In some examples of the present utility model, the first mounting bracket includes a first bracket section, a second bracket section, a third bracket section, and a fourth bracket section. The first bracket section extends in the left-right direction and is fixedly attached to the bottom plate. The second bracket section extends in the up-down direction and the lower end is connected to the first bracket section. The third bracket section extends in the left-right direction and is connected to the upper end of the second bracket section. The fourth bracket section extends in the up-down direction and the lower end is connected to one end of the third bracket section that is away from the second bracket section in the left-right direction. The fourth bracket section is fixedly attached to the side plate. A plurality of connection blocks are provided on the battery assembly, and the connection blocks are fixedly connected to the third bracket section.

[0011] In some examples of the present utility model, a first connection hole is provided on a part of the plurality of first mounting brackets, and a second connection hole is provided on a part of the plurality of connection blocks. The first connection hole and the second connection hole are vertically corresponding and are fixedly connected by a first fastener; a first positioning hole is provided on another part of the plurality of first mounting brackets, and a second positioning hole is provided on another part of the plurality of connection blocks. The first positioning hole and the second positioning hole are vertically corresponding and are in positioning cooperation through a first positioning member.

[0012] In some examples of the present utility model, the chassis further includes a partition. The battery assembly includes a first battery component and a second battery component. The second battery component is spaced above the first battery component. The first battery component is disposed on the battery tray and is connected to the battery tray. The partition is disposed between the second battery component and the first battery component. The bottom of the second battery component is connected to the partition. The front and back sides of the partition are respectively connected to the two battery mounting crossbeams.

[0013] In some examples of the present utility model, connection plates are provided on both the front and back sides of the partition, and the connection plates are respectively connected to the second mounting brackets on the two battery mounting crossbeams.

[0014] In some examples of the present utility model, the two battery installation crossbeams are respectively a front battery installation crossbeam and a rear battery installation crossbeam. It is set that the second installation bracket on the front battery installation crossbeam is a second front installation bracket, and the second installation bracket on the rear battery installation crossbeam is a second rear installation bracket. The second front installation bracket is arranged at the bottom of the front battery installation crossbeam, and the second rear installation bracket is arranged at the front side of the rear battery installation crossbeam.

[0015] In some examples of the present utility model, there are two second front installation brackets, and the two second front installation brackets are respectively arranged at both ends of the front battery installation crossbeam in the left-right direction; and / or there are multiple second rear installation brackets, and the multiple second rear installation brackets are arranged at intervals in the left-right direction on the rear battery installation crossbeam.

[0016] The vehicle according to an embodiment of the present utility model includes: the chassis described above.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is a partial side view schematic diagram of a vehicle according to an embodiment of the present utility model;

[0020] Figure 2 is a partial top view schematic diagram of a vehicle according to an embodiment of the present utility model;

[0021] Figure 3 is a partial schematic diagram of a chassis according to an embodiment of the present utility model;

[0022] Figure 4 is a partial schematic diagram of another perspective of a chassis according to an embodiment of the present utility model;

[0023] Figure 5 is a partial exploded schematic diagram of a chassis according to an embodiment of the present utility model;

[0024] Figure 6 is a partial exploded schematic diagram of another perspective of a chassis according to an embodiment of the present utility model;

[0025] Figure 7 is a partial schematic diagram of a chassis according to an embodiment of the present utility model;

[0026] Figure 8 It is a partial schematic view of another perspective of the chassis according to an embodiment of the present utility model.

[0027] Reference numerals:

[0028] 100, chassis;

[0029] 10, longitudinal beam; 11, third mounting bracket; 111, projection welding nut; 112, reinforcing plate; 12, positioning piece;

[0030] 20, battery tray; 21, first mounting bracket; 211, first bracket section; 212, second bracket section; 213, third bracket section; 2131, first connection hole; 2132, first positioning hole; 214, fourth bracket section; 22, bottom plate; 23, side plate; 231, side plate main body; 232, second bending part;

[0031] 30, battery mounting cross beam; 301, front battery mounting cross beam; 302, rear battery mounting cross beam; 31, second mounting bracket; 3101, second front mounting bracket; 3102, second rear mounting bracket;

[0032] 40, battery assembly; 41, connection block; 411, second connection hole; 412, second positioning hole; 42, first battery component; 43, second battery component;

[0033] 50, partition; 51, connecting plate; 511, connecting main body; 512, first bending part;

[0034] 60, first fastener; 61, first positioning piece; 62, second fastener; 63, second positioning piece; 64, third fastener; 65, third positioning piece; 66, fourth fastener; 67, fourth positioning piece. Detailed implementation manners

[0035] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0036] Below, with reference to Figures 1 - 8 Describe the chassis 100 according to an embodiment of the present utility model. The chassis 100 can be applied to a vehicle.

[0037] Combined with Figures 1 - 8 As shown, the chassis 100 according to the present utility model mainly includes: a longitudinal beam 10, a battery tray 20, a battery mounting cross beam 30, and a battery assembly 40.

[0038] Among them, the longitudinal beams 10 extend in the front-rear direction and there are two of them. The two longitudinal beams 10 are spaced apart in the left-right direction. The battery tray 20 is arranged at the rear ends of the two longitudinal beams 10. The battery tray 20 is located below the two longitudinal beams 10 and is connected to the two longitudinal beams 10. The battery installation cross beam 30 extends in the left-right direction and is connected to the two longitudinal beams 10. The battery installation cross beam 30 is spaced above the battery tray 20. The battery assembly 40 is arranged in the battery tray 20.

[0039] Specifically, both of the two longitudinal beams 10 extend in the front-rear direction, and the two longitudinal beams 10 are spaced apart in the left-right direction. The battery installation cross beam 30 can be arranged between the two longitudinal beams 10, and both ends of the battery installation cross beam 30 are respectively connected to the two longitudinal beams 10. In this way, the basic framework of the chassis 100 can be formed to provide support for other components of the vehicle.

[0040] When the vehicle is running, electricity is needed, and the battery assembly 40 needs to be arranged on the chassis 100. By arranging the battery tray 20 at the rear ends of the two longitudinal beams 10 and making the battery tray 20 located below the two longitudinal beams 10, the battery assembly 40 can be arranged in the battery tray 20, realizing the installation of the battery assembly 40 on the chassis 100.

[0041] It can be understood that after the battery assembly 40 is arranged in the battery tray 20, the battery assembly 40 is located between the two longitudinal beams 10 and is arranged adjacent to the rear ends of the longitudinal beams 10. In this way, when the vehicle has a frontal or side collision, both longitudinal beams 10 can absorb a part of the collision energy first, which can enhance the protection effect on the battery assembly 40, reduce the risk of damage to the battery assembly 40, and improve the safety and reliability of the vehicle.

[0042] Moreover, different from directly connecting the battery assembly to the longitudinal beam, by arranging the battery tray 20, on the one hand, the battery tray 20 can play a protective role for the battery assembly 40 to prevent the erosion of foreign objects from the outside or the destruction of the structure of the battery assembly 40 by external forces. On the other hand, it can avoid the direct connection between the battery assembly 40 and the longitudinal beam 10, reduce the influence of the heat source around the longitudinal beam 10 on the battery assembly 40, and improve the thermal management performance of the battery assembly 40, thereby further improving the stability of the battery assembly 40.

[0043] Combined Figures 3 - 8 As shown, at least one side in the left-right direction of the battery tray 20 is provided with a plurality of first mounting brackets 21 spaced apart in the front-rear direction. The battery installation cross beam 30 is provided with second mounting brackets 31, and there are a plurality of second mounting brackets 31 which are spaced apart in the left-right direction on the battery installation cross beam 30. At least one side in the left-right direction of the battery assembly 40 is connected to the plurality of first mounting brackets 21, and at least one side in the front-rear direction of the battery assembly 40 is connected to the plurality of second mounting brackets 31.

[0044] Specifically, although the battery tray 20 can provide a loading space for the battery assembly 40, it is still necessary to fix the battery assembly 40 so that the battery assembly 40 is stably fixed on the chassis 100, avoiding involuntary movement of the battery assembly 40, which may cause damage to the structure of the battery assembly 40.

[0045] By providing a plurality of first mounting brackets 21 on at least one side of the battery tray 20 in the left-right direction and arranging the plurality of first mounting brackets 21 at intervals in the front-back direction, after the battery assembly 40 is disposed on the battery tray 20, at least one side of the battery assembly 40 in the left-right direction can be connected to the plurality of first mounting brackets 21, thereby providing a connecting force in the left-right direction for the battery assembly 40 and realizing the fixation of the battery assembly 40.

[0046] Moreover, by providing a plurality of second mounting brackets 31 on the battery mounting cross beam 30, with the plurality of second mounting brackets 31 arranged at intervals in the left-right direction on the battery mounting cross beam 30, after the battery assembly 40 is disposed on the battery tray 20, at least one side of the battery assembly 40 in the front-back direction can be connected to the plurality of second mounting brackets 31, thereby providing a connecting force in the front-back direction for the battery assembly 40 and realizing the fixation of the battery assembly 40.

[0047] It should be noted that the surface of the battery mounting cross beam 30 is uneven. Through the provision of the second mounting brackets 31, the connection between the battery assembly 40 and the battery mounting cross beam 30 can be a flat surface, which is convenient for the connection between the battery assembly 40 and the battery mounting cross beam 30 and can improve the installation accuracy.

[0048] Thus, through the connection between the plurality of first mounting brackets 21 and the plurality of second mounting brackets 31 and the battery assembly 40 respectively, the battery assembly 40 can be subjected to a plurality of connecting forces in both the front-back direction and the left-right direction, so that the force on the battery assembly 40 is more uniform, the setting of the battery assembly 40 on the chassis 100 is simpler, and more stable and reliable, and involuntary movement of the battery assembly 40 can be avoided.

[0049] In some embodiments of the present invention, as shown in Figure 5 and Figure 8 a plurality of first mounting brackets 21 arranged at intervals in the front-back direction are provided on both sides of the battery tray 20 in the left-right direction. In this way, the left and right sides of the battery assembly 40 can be respectively connected to the left and right sides of the battery tray 20 through the plurality of first mounting brackets 21 on both sides, and the battery assembly 40 can be fixed, which can further improve the setting stability and reliability of the battery assembly 40.

[0050] Moreover, there are two battery installation crossbeams 30, which are respectively located on the front and rear sides of the battery assembly 40. In this way, the front and rear sides of the battery assembly 40 can be connected to the two battery installation crossbeams 30 through the second mounting brackets 31 on the front and rear battery installation crossbeams 30, so as to fix the battery assembly 40, which can further improve the setting stability and reliability of the battery assembly 40.

[0051] In this way, the left, right, front and rear sides of the battery assembly 40 can all receive multiple connection forces, so that the force on the battery assembly 40 can be more uniform, making the setting of the battery assembly 40 on the chassis 100 simpler and more stable and reliable.

[0052] Combined with Figure 5 and Figure 8 As shown, the battery tray 20 mainly includes a bottom plate 22 and side plates 23. The bottom plate 22 is arranged at intervals below the longitudinal beam 10. A plurality of side plates 23 arranged at intervals in the front-rear direction are provided on both the left and right sides of the bottom plate 22. The side plates 23 extend in the up-down direction and the upper ends are connected to the longitudinal beam 10. One ends of a plurality of first mounting brackets 21 are fixedly connected to the plurality of side plates 23, and the other ends of the plurality of first mounting brackets 21 are connected to the battery assembly 40.

[0053] Specifically, by making the battery tray 20 include a bottom plate 22 and side plates 23, the bottom plate 22 is arranged at intervals below the longitudinal beam 10, and a plurality of side plates 23 are provided on both the left and right sides of the bottom plate 22, and the side plates 23 extend in the up-down direction. In this way, the overall structure of the battery tray 20 can be formed, and the structure of the battery tray 20 is simple. The side plates 23 can adapt to the height difference between the bottom plate 22 and the longitudinal beam 10. Only by connecting the side plates 23 to the longitudinal beam 10 can the connection between the battery tray 20 and the longitudinal beam 10 be realized. The battery tray 20 can be arranged at the rear ends of the two longitudinal beams 10 to realize the stable setting of the battery tray 20 on the chassis 100.

[0054] It can be understood that the side plates 23 are located on the left and right sides of the bottom plate 22. By fixedly connecting one ends of a plurality of first mounting brackets 21 to the plurality of side plates 23, the setting of the plurality of first mounting brackets 21 on the left and right sides of the battery tray 20 can be realized. Only by connecting the other ends of the plurality of first mounting brackets 21 to the battery assembly 40 can the connection between the battery assembly 40 and the battery tray 20 be realized, that is: the setting of the battery assembly 40 on the chassis 100 can be realized, so that the structures of the battery tray 20 and the battery assembly 40 can be simpler, and the connection between the battery assembly 40 and the battery tray 20 can be simpler and more reliable.

[0055] Combined with Figure 5As shown, the first mounting bracket 21 may mainly include a first bracket section 211, a second bracket section 212, a third bracket section 213, and a fourth bracket section 214. The first bracket section 211 extends in the left-right direction and is fixedly attached to the bottom plate 22. The second bracket section 212 extends in the up-down direction, and its lower end is connected to the first bracket section 211. The third bracket section 213 extends in the left-right direction and is connected to the upper end of the second bracket section 212. The fourth bracket section 214 extends in the up-down direction, and its lower end is connected to one end of the third bracket section 213 that is away from the second bracket section 212 in the left-right direction. The fourth bracket section 214 is fixedly attached to the side plate 23.

[0056] In this way, the basic structure of the first mounting bracket 21 can be formed. The first mounting bracket 21 can adapt to the positions and distances between the side plate 23, the bottom plate 22, and the battery assembly 40, and provide a mounting position for the battery assembly 40 on the premise of realizing the stable setting of the first mounting bracket 21 on the battery tray 20.

[0057] Correspondingly, a plurality of connection blocks 41 are provided on the battery assembly 40. The connection blocks 41 and the third bracket section 213 can correspond to each other in the up-down direction. Only by connecting and fixing the connection blocks 41 to the third bracket section 213 can the installation and setting of the battery assembly 40 on the battery tray 20 be realized, and the installation and setting of the battery assembly 40 on the battery tray 20 can be made simpler and more reliable.

[0058] Combined Figure 5 and Figure 8 As shown, a first connection hole 2131 is provided on a part of the plurality of first mounting brackets 21, and a second connection hole 411 is provided on a part of the plurality of connection blocks 41. The first connection hole 2131 and the second connection hole 411 correspond to each other in the up-down direction and are connected and fixed by a first fastener 60. In addition, a first positioning hole 2132 is provided on another part of the plurality of first mounting brackets 21, and a second positioning hole 412 is provided on another part of the plurality of connection blocks 41. The first positioning hole 2132 and the second positioning hole 412 correspond to each other in the up-down direction and are positioned and matched by a first positioning member 61.

[0059] Specifically, by providing first connection holes 2131 on a part of the plurality of first mounting brackets 21, providing second connection holes 411 on a part of the plurality of connection blocks 41, and making the first connection holes 2131 and the second connection holes 411 correspond to each other one by one in the up-and-down direction, only by making the first fasteners 60 pass through the first connection holes 2131 and the second connection holes 411 simultaneously and performing a fastening function, the fixation between the plurality of connection blocks 41 and the plurality of first mounting brackets 21 can be achieved. This can not only make the fixation between the plurality of connection blocks 41 and the plurality of first mounting brackets 21 simpler and more reliable, but also make the fixation between the plurality of connection blocks 41 and the plurality of first mounting brackets 21 detachable, facilitating later maintenance.

[0060] Furthermore, by providing first positioning holes 2132 on a part of the plurality of first mounting brackets 21, providing second positioning holes 412 on a part of the plurality of positioning blocks, and making the first positioning holes 2132 and the second positioning holes 412 correspond to each other one by one in the up-and-down direction, only by making the first positioning members 61 pass through the first positioning holes 2132 and the second positioning holes 412 simultaneously, the positioning fit between the plurality of connection blocks 41 and the plurality of first mounting brackets 21 can be achieved, enabling the plurality of connection blocks 41 and the plurality of first mounting brackets 21 to be in the correct assembly positions, and improving the assembly efficiency between the plurality of connection blocks 41 and the plurality of first mounting brackets 21.

[0061] Combined Figures 3 - 8 As shown, the chassis 100 may further include a partition 50. The battery assembly 40 may mainly include a first battery member 42 and a second battery member 43. The second battery member 43 is disposed at an interval above the first battery member 42. The first battery member 42 is disposed on the battery tray 20 and is connected to the battery tray 20. The partition 50 is disposed between the second battery member 43 and the first battery member 42. The bottom of the second battery member 43 is connected to the partition 50. The front and rear sides of the partition 50 are respectively connected to the two battery mounting crossbeams 30.

[0062] Specifically, the battery assembly 40 is made to include a first battery member 42 and a second battery member 43, and the second battery member 43 is disposed at an interval above the first battery member 42, that is, the battery assembly 40 is designed in a layered manner. In this way, the first battery member 42 can make full use of the space between the two longitudinal beams 10, and the second battery member 43 can make full use of the space below the two longitudinal beams 10, achieving the full utilization of the limited space on the chassis 100. Thereby, the volume of the battery assembly 40 can be increased, the capacity of the battery assembly 40 can be increased, the demand for installing large-capacity power batteries for new energy vehicles can be met, and the endurance of the vehicle can be improved.

[0063] To adapt to the hierarchical design of the battery assembly 40, the chassis 100 may further include a partition 50. The partition 50 is disposed above the bottom plate 22 at intervals. The front and rear sides of the partition 50 are respectively connected to the two battery mounting crossbeams 30. In this way, the first battery component 42 can be disposed on the battery tray 20 and connected to the battery tray 20, and the second battery component 43 can be disposed on the partition 50 and connected to the partition 50, so as to respectively realize the stable setting of the first battery component 42 and the second battery component 43, and further improve the stability and reliability of the battery assembly 40 disposed on the chassis 100.

[0064] Among them, heat insulation cotton can be disposed between the battery tray 20 and the first battery component 42, and heat insulation cotton can be disposed between the partition 50 and the second battery component 43, so as to further improve the thermal management performance of the battery assembly 40.

[0065] Combined Figures 3 - 5 As shown, connecting plates 51 are disposed on both the front and rear sides of the partition 50. The connecting plates 51 are respectively connected to the second mounting brackets 31 on the two battery mounting crossbeams 30. Specifically, it can be understood that the partition 50 and the two battery mounting crossbeams 30 are disposed at intervals in the vertical direction. By disposing connecting plates 51 on both the front and rear sides of the partition 50 and the connecting plates 51 extending upward, the connecting plates 51 can be respectively connected to the second mounting brackets 31 on the two battery mounting crossbeams 30, so as to realize the connection between the partition 50 and the two battery mounting crossbeams 30.

[0066] Combined Figures 2 - 8 As shown, the two battery mounting crossbeams 30 are respectively a front battery mounting crossbeam 301 and a rear battery mounting crossbeam 302. The second mounting bracket 31 on the front battery mounting crossbeam 301 is set as a second front mounting bracket 3101, and the second mounting bracket 31 on the rear battery mounting crossbeam 302 is set as a second rear mounting bracket 3102. The second front mounting bracket 3101 is disposed at the bottom of the front battery mounting crossbeam 301, and the second rear mounting bracket 3102 is disposed at the front side of the rear battery mounting crossbeam 302.

[0067] Specifically, by disposing the second front mounting bracket 3101 at the bottom of the front battery mounting crossbeam 301, only the connecting plate needs to extend upward to the bottom of the front battery mounting crossbeam 301, and the connecting plate 51 is connected to the second front mounting bracket 3101, so that the connection between the connecting plate 51 and the second front mounting bracket 3101 can be made simpler and more convenient.

[0068] And on this premise, by optimizing the installation position of the second front mounting bracket 3101, on the one hand, it is possible to avoid the second front mounting bracket 3101 occupying the space behind the front battery mounting cross beam 301, which is conducive to increasing the space for accommodating the second battery component 43, thereby enabling the capacity of the second battery component 43 to be increased. On the other hand, it is possible to avoid the second front mounting bracket 3101 occupying the space in front of the front battery mounting cross beam 301, facilitating the arrangement of other components at intervals on the front side of the battery assembly 40.

[0069] Furthermore, by arranging the second rear mounting bracket 3102 on the front side of the rear battery mounting cross beam 302, it is possible to avoid occupying the space behind the rear battery mounting cross beam 302, facilitating the arrangement of other components at intervals on the rear side of the battery assembly 40.

[0070] Combined with Figures 2 - 8 As shown, there are two second front mounting brackets 3101, and the two second front mounting brackets 3101 are respectively arranged at both ends of the front battery mounting cross beam 301 in the left-right direction. In this way, during assembly, the two second front mounting brackets 3101 can be connected to both ends of the front side of the battery assembly 40, so that the connection force distribution between the front battery mounting cross beam 301 and the front end of the battery assembly 40 is more uniform and reasonable. This can not only improve the connection strength and reliability between the battery assembly 40 and the front battery mounting cross beam 301, improve the setting stability of the battery assembly 40, but also avoid occupying the middle position of the front battery mounting cross beam 301 in the left-right direction, facilitating the arrangement of other components.

[0071] In a specific embodiment of the present utility model, combined with Figures 5 - 8 As shown, the second front mounting bracket 3101 can be set as a U-shaped bending part, the front battery mounting cross beam 301 extends into the opening of the second front mounting bracket 3101, the front battery mounting cross beam 301 is welded to the second front mounting bracket 3101, the lower end of the second front mounting bracket 3101 is a flat plate structure, and the connecting plate 51 can include a connecting body 511 and a first bending part 512. The connecting body 511 extends in the front-rear direction and is connected to the upper end of the connecting body 511. In this way, the first bending part 512 can be attached to the bottom of the second front mounting bracket 3101, facilitating connection.

[0072] Optionally, the second fastener 62 can be set to pass through the first bending part 512 and the second front mounting bracket 3101 simultaneously for fastening, realizing the detachable connection between the connecting plate 51 and the second front mounting bracket 3101. And the second positioning part 63 can be set to pass through the connecting plate 51 and the second front mounting bracket 3101 simultaneously, enabling the connecting plate 51 and the second front mounting bracket 3101 to be positioned and matched, improving the assembly efficiency.

[0073] Combined with Figures 2 - 8As shown, there are multiple second rear mounting brackets 3102, and the multiple second rear mounting brackets 3102 are arranged at intervals in the left - right direction on the battery - mounted rear cross - beam 302. In this way, during assembly, the multiple second rear mounting brackets 3102 can be connected to the rear side of the battery assembly 40. The connection forces between the multiple second rear mounting brackets 3102 and the rear side of the battery assembly 40 are distributed at intervals in the left - right direction. This can make the connection force distribution between the battery - mounted rear cross - beam 302 and the rear end of the battery assembly 40 more uniform and reasonable, improve the connection strength and reliability between the battery assembly 40 and the battery - mounted rear cross - beam 302, and improve the setting stability of the battery assembly 40.

[0074] In a specific embodiment of the present utility model, in combination with Figures 5 - 8 As shown, the second rear mounting bracket 3102 can be welded to the battery - mounted rear cross - beam 302 in a semi - wrapped manner, and the bottom of the second rear mounting bracket 3102 is a flat plate structure parallel to the partition plate 50. And the connecting plate 51 can include a connecting body 511 and a first bending part 512. The connecting body 511 extends in the front - rear direction and is connected to the upper end of the connecting body 511. In this way, the first bending part 512 can be attached to the bottom of the second rear mounting bracket 3102, which is convenient for connection.

[0075] Optionally, a third fastener 64 can be set to pass through the first bending part 512 and the second rear mounting bracket 3102 simultaneously and perform a fastening function to realize the detachable connection between the connecting plate 51 and the second rear mounting bracket 3102. And a third positioning member 65 can be set to pass through the connecting plate 51 and the second rear mounting bracket 3102 simultaneously to make the connecting plate 51 and the second rear mounting bracket 3102 in positioning cooperation, improving the assembly efficiency.

[0076] In combination with Figures 2 - 8 As shown, a third mounting bracket 11 can be provided on the longitudinal beam 10. The third mounting bracket 11 is welded to the longitudinal beam 10. By making a fourth fastener 66 pass through the third mounting bracket 11 and the side plate 23 simultaneously and perform a fastening function, the detachable connection between the side plate 23 and the third mounting bracket 11 is realized. And a positioning piece 12 can be connected to the third mounting bracket 11. By making a fourth positioning member 67 pass through the positioning piece 12 and the side plate 23 simultaneously, the third mounting bracket 11 and the side plate 23 are in positioning cooperation, improving the assembly efficiency.

[0077] Among them, the lower end of the third mounting bracket 11 can be set as a flat plate structure, and the side plate 23 includes a side - plate main body 231 and a second bending part 232. The second bending part 232 extends in the left - right direction and is connected to the upper end of the side - plate main body 231. In this way, the second bending part 232 can be attached to the lower end of the third mounting bracket 11, facilitating the connection.

[0078] Optionally, the fourth fastener 66 may be a bolt. A projection welding nut 111 may be provided on the third mounting bracket 11. The bolt passes through the side plate 23 and the third mounting bracket 11 at one time and is threadedly connected to the projection welding nut 111. In addition, a reinforcing plate 112 may be provided on the third mounting bracket 11, which can further improve the structural strength of the third mounting bracket 11 and enhance the stability of the installation of the battery assembly 40 on the chassis 100.

[0079] The vehicle according to the present utility model may mainly include: the above-mentioned chassis 100. Specifically, by applying the chassis 100 to the vehicle, on the premise of increasing the capacity of the battery assembly 40, the setting of the battery assembly 40 can be made simpler, more convenient, stable and reliable, thereby improving the reliability of the vehicle, further enhancing the product competitiveness of the vehicle, and improving the user experience.

[0080] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0082] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A chassis, characterized in that: include: A longitudinal beam (10), wherein the longitudinal beam (10) is extended in the front-rear direction and is in two pieces, and the two longitudinal beams (10) are spaced apart in the left-right direction; A battery tray (20), the battery tray (20) being arranged at the rear ends of the two longitudinal beams (10), the battery tray (20) being located below the two longitudinal beams (10) and connected to the two longitudinal beams (10), and a plurality of first mounting brackets (21) being arranged at intervals in the front-rear direction being arranged on at least one side of the battery tray (20) in the left-right direction; A battery mounting crossbeam (30), the battery mounting crossbeam (30) extending in the left-right direction and connected to the two longitudinal beams (10), the battery mounting crossbeam (30) being arranged above the battery tray (20) at intervals, a second mounting bracket (31) being arranged on the battery mounting crossbeam (30), a plurality of the second mounting brackets (31), and the plurality of the second mounting brackets (31) being arranged on the battery mounting crossbeam (30) at intervals on the left-right direction; A battery assembly (40), wherein the battery assembly (40) is arranged in the battery tray (20), wherein at least one side of the battery assembly (40) in the left-right direction is connected to a plurality of the first mounting brackets (21), and at least one side of the battery assembly (40) in the front-back direction is connected to a plurality of the second mounting brackets (31).

2. The chassis according to claim 1, characterized in that: A plurality of first mounting brackets (21) are arranged at intervals in the front-to-back direction on both sides of the battery tray (20) in the left-right direction, and there are two battery mounting cross beams (30), which are respectively located on the front and back sides of the battery assembly (40).

3. The chassis according to claim 2, characterized in that: The battery tray (20) comprises a bottom plate (22) and side plates (23); the bottom plate (22) is spaced apart below the longitudinal beam (10); a plurality of side plates (23) spaced apart in the front-rear direction are provided on both sides of the bottom plate (22) in the left-right direction; the side plates (23) extend in the up-down direction and the upper ends are connected to the longitudinal beam (10); one ends of the plurality of first mounting brackets (21) are connected and fixed to the plurality of side plates (23); and the other ends of the plurality of first mounting brackets (21) are connected to the battery assembly (40).

4. The chassis according to claim 3, characterized in that: The first mounting bracket (21) comprises a first bracket section (211), a second bracket section (212), a third bracket section (213) and a fourth bracket section (214); the first bracket section (211) is extended in the left-right direction and is fitted and fixed to the bottom plate (22); the second bracket section (212) is extended in the up-down direction and its lower end is connected to the first bracket section (211); the third bracket section (213) is extended in the left-right direction and is connected to the upper end of the second bracket section (212); the fourth bracket section (214) is extended in the up-down direction and its lower end is connected to an end of the third bracket section (213) in the left-right direction away from the second bracket section (212); the fourth bracket section (214) is fitted and fixed to the side plate (23); a plurality of connection blocks (41) are provided on the battery assembly (40); the connection blocks (41) are connected and fixed to the third bracket section (213).

5. The chassis according to claim 4, characterized in that: A first connection hole (2131) is provided on a portion of the plurality of first mounting brackets (21), a second connection hole (411) is provided on a portion of the plurality of connection blocks (41), the first connection hole (2131) and the second connection hole (411) correspond to each other vertically and are connected and fixed by a first fastener (60); A first positioning hole (2132) is provided on another part of the plurality of first mounting brackets (21), and a second positioning hole (412) is provided on another part of the plurality of connecting blocks (41), and the first positioning hole (2132) and the second positioning hole (412) correspond to each other in upper and lower parts and are positioned and matched by a first positioning member (61).

6. The chassis according to claim 2, characterized in that: The battery assembly (40) further comprises a partition (50), wherein the battery assembly (40) comprises a first battery component (42) and a second battery component (43), wherein the second battery component (43) is arranged above the first battery component (42), and the first battery component (42) is arranged on the battery tray (20) and connected to the battery tray (20), and the partition (50) is arranged between the second battery component (43) and the first battery component (42), and the bottom of the second battery component (43) is connected to the partition (50), and the front and rear sides of the partition (50) are respectively connected to the two battery mounting beams (30).

7. The chassis according to claim 6, characterized in that Connecting plates (51) are provided on both the front and rear sides of the partition plate (50), and the connecting plates (51) are respectively connected to the second mounting brackets (31) on the two battery mounting cross beams (30).

8. The chassis according to claim 6, characterized in that: The two battery installation beams (30) are respectively a battery installation front beam (301) and a battery installation rear beam (302); the second installation bracket (31) on the battery installation front beam (301) is set as a second front installation bracket (3101); the second installation bracket (31) on the battery installation rear beam (302) is set as a second rear installation bracket (3102); the second front installation bracket (3101) is arranged at the bottom of the battery installation front beam (301); and the second rear installation bracket (3102) is arranged at the front side of the battery installation rear beam (302).

9. The chassis according to claim 8, characterized in that There are two second front mounting brackets (3101), and the two second front mounting brackets (3101) are respectively arranged at both ends of the battery installation front cross beam (301) in the left and right directions; and / or There are a plurality of the second rear mounting brackets (3102), and the plurality of the second rear mounting brackets (3102) are arranged at intervals on the left and right sides of the battery mounting rear cross beam (302).

10. A vehicle, characterized in that: A chassis (100) comprising any one of claims 1-9.

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