Battery pack, battery pack assembly for vehicle and vehicle

Abstract

The utility model discloses a battery pack, battery pack subassembly for the vehicle and the vehicle, the battery pack includes: the frame, the frame includes the boundary beam that extends along the length direction of the vehicle, the boundary beam has the first boundary beam mounting point, the first boundary beam mounting point is suitable for mounting the seat mounting cross beam. Therefore, by arranging the battery pack, the seat mounting cross beam can be integrally connected to the edge beam, so that on one hand, the connecting depth of the seat mounting cross beam and the battery pack can be increased, the mounting structure can be simplified, and on the other hand, the battery pack can conveniently form a relatively independent individual; and therefore, the structural reliability when the battery pack is integrated with the seat mounting cross beam and the convenience when the battery pack is repaired are improved.

Description

Technical Field

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

[0002] In the related technology, most of the existing solutions highly integrate the battery pack with the lower body, and a seat support beam is provided on the top of the front floor. The seat support beam is welded and fixed to the front floor and the door sill beam at the same time. In this way, the sealing performance of the whole package cannot be fully guaranteed, and when the battery pack has quality problems, the entire lower body (including the door sill beam, front and rear floors, etc.) needs to be disassembled as a whole, and the difficulty, time consumption and cost of rework are very large; or the seat mounting beam is simply placed on the top cover, so that it is necessary to design an additional mounting structure between the seat mounting beam and the side beam, which causes the problem of a more complicated mounting structure. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery pack that can integrate the seat mounting crossbeam with the side beam, thereby increasing the connection depth between the seat mounting crossbeam and the battery pack and simplifying the installation structure, and facilitating the battery pack to form a relatively independent entity.

[0004] The utility model further proposes a battery pack assembly for a vehicle.

[0005] The utility model further provides a vehicle.

[0006] The battery pack according to the first aspect of the utility model includes: a frame, the frame includes a side beam extending along the length direction of the vehicle, the side beam has a first side beam mounting point, and the first side beam mounting point is suitable for mounting a seat mounting cross beam.

[0007] Therefore, by setting up the battery pack, the seat mounting beam can be connected to the side beam, which can enhance the connection depth between the seat mounting beam and the battery pack and simplify the installation structure on the one hand, and facilitate the battery pack to form a relatively independent individual on the other hand, thereby improving the structural reliability when the battery pack is integrated with the seat mounting beam and the convenience when the battery pack is repaired.

[0008] In some examples of the present invention, the first side beam mounting point is configured as a first threaded hole, and the seat mounting cross beam is suitable for being mounted on the first side beam mounting point via a first fastener threadably matched with the first threaded hole.

[0009] In some examples of the present invention, the first side beam mounting point is multiple to form a first side beam mounting point group, and the end of the seat mounting cross beam is suitable for being mounted on the first side beam mounting point group.

[0010] In some examples of the present invention, there are multiple first side beam mounting point groups, and each end of the seat mounting cross beam is suitable for being mounted on the corresponding first side beam mounting point group.

[0011] In some examples of the present invention, the side beam has a second side beam mounting point, the first side beam mounting point and the second side beam mounting point are spaced apart along the length direction of the vehicle, and the second side beam mounting point mounts the top cover to the side beam.

[0012] In some examples of the present invention, the second side beam mounting point is configured as a second threaded hole, and the top cover is suitable for being mounted on the side beam by a second fastener threadedly engaged through the second threaded hole.

[0013] In some examples of the present invention, there are multiple first side beam mounting points to form a first side beam mounting point group, and the end of the seat mounting beam is suitable for being installed on the first side beam mounting point group; there are multiple second side beam mounting points, and on one of the side beams, the distance between two adjacent first side beam mounting points is d1, and the distance between two adjacent second side beam mounting points is d2, and d1 and d2 satisfy the relationship: d1<d2.

[0014] In some examples of the present invention, the first side beam mounting point is arranged on the top surface of the side beam.

[0015] In some examples of the present invention, the side beams are relatively arranged along the width direction of the vehicle, and each of the side beams is provided with the first side beam mounting point.

[0016] In some examples of the present invention, the battery pack further includes: a top cover, the top cover is mounted on the frame, the top cover has a first top cover mounting point, the first top cover mounting point and the first side beam mounting point correspond in position, and the first top cover mounting point and the first side beam mounting point are suitable for mounting a seat mounting beam.

[0017] In some examples of the present invention, the first top cover mounting point is configured as a first through hole, and the first side beam mounting point is configured as a first threaded hole; the seat mounting cross beam is suitable for being installed at the first top cover mounting point and the first side beam mounting point by means of a first fastener passing through the first through hole and threadably engaging with the first threaded hole.

[0018] In some examples of the present invention, there are multiple first top cover mounting points to form a first top cover mounting point group, there are multiple first side beam mounting points to form a first side beam mounting point group, the multiple first top cover mounting points of the first top cover mounting point group and the multiple first side beam mounting points of the first side beam mounting point group correspond one to one, and the end of the seat mounting beam is suitable for being installed on the first top cover mounting point group and the first side beam mounting point group.

[0019] In some examples of the present invention, there are multiple first top cover mounting point groups and multiple first side beam mounting point groups, and the multiple first top cover mounting point groups and the multiple first side beam mounting point groups correspond one to one, and each end of the seat mounting cross beam is suitable for being installed on a corresponding one of the first top cover mounting point groups and the first side beam mounting point groups.

[0020] In some examples of the present invention, the top cover has a second top cover mounting point, and the first top cover mounting point and the second top cover mounting point are spaced apart along the length direction of the vehicle; the side beam has a second side beam mounting point, and the first side beam mounting point and the second side beam mounting point are spaced apart along the length direction of the vehicle, and the second top cover mounting point and the second side beam mounting point are positioned correspondingly so as to mount the top cover on the side beam.

[0021] In some examples of the present invention, the second top cover mounting point is configured as a second through hole, and the second side beam mounting point is configured as a second threaded hole; the top cover is suitable for being mounted on the side beam by means of a second fastener passing through the second through hole and threadably engaging with the second threaded hole.

[0022] In some examples of the present invention, there are multiple first top cover mounting points to form a first top cover mounting point group, there are multiple first side beam mounting points to form a first side beam mounting point group, the multiple first top cover mounting points of the first top cover mounting point group and the multiple first side beam mounting points of the first side beam mounting point group correspond one to one, and the end of the seat mounting beam is suitable for being installed on the first top cover mounting point group and the first side beam mounting point group; there are multiple second top cover mounting points, there are multiple second side beam mounting points, and the multiple second top cover mounting points and the multiple second side beam mounting points correspond one to one; wherein, on one of the side beams, the distance between two adjacent first side beam mounting points is d1, the distance between two adjacent second side beam mounting points is d2, and d1 and d2 satisfy the relationship: d1<d2.

[0023] In some examples of the present invention, the battery pack further includes: a seal, wherein the seal is sealed between the side beam and the top cover, and the seal is provided with a sealing installation point, and the sealing installation point corresponds to the positions of the first top cover installation point and the first side beam installation point respectively.

[0024] In some examples of the present invention, the top cover includes: a metal layer; an insulating layer, and the insulating layer is arranged on a side of the metal layer facing the frame.

[0025] According to the second aspect of the utility model, a battery pack assembly for a vehicle includes: the above-mentioned battery pack; a seat mounting crossbeam, the seat mounting crossbeam having a crossbeam mounting point, the first side beam mounting point and the crossbeam mounting point corresponding in position, so that the seat mounting crossbeam can be installed on the top cover and the side beam.

[0026] In some examples of the present invention, the seat mounting cross beam includes: a first mounting plate, which is arranged on the top cover; a second mounting plate, which is arranged on the side of the first mounting plate away from the frame, and the second mounting plate is provided with a seat mounting portion for installing a seat; wherein the first mounting plate and / or the second mounting plate is provided with the cross beam mounting point.

[0027] In some examples of the present invention, the second mounting plate includes: a top plate, which is provided with the seat mounting portion; side plates, which are respectively connected to both sides of the top plate; flanges, which are respectively connected to the side plates and attached to the first mounting plate; wherein the beam mounting point is provided in the bonding area between the flange and the first mounting plate; and / or the beam mounting point is provided in the area of ​​the first mounting plate opposite to the top plate.

[0028] In some examples of the present invention, the crossbeam mounting point is provided in the area of ​​the first mounting plate opposite to the top plate, and the top plate is provided with an avoidance groove corresponding to the crossbeam mounting point.

[0029] In some examples of the present invention, the battery pack assembly for a vehicle further includes: a top cover, the top cover is mounted on the frame, and the first mounting plate is welded to the top cover.

[0030] In some examples of the present invention, the side beams are relatively arranged along the width direction of the vehicle, and the seat mounting beams are multiple and include: a first seat mounting beam, and the beam mounting points are arranged at both ends of the first seat mounting beam to correspond to the position of the first beam mounting point of the side beam relative to the width direction of the vehicle.

[0031] In some examples of the utility model, the battery pack assembly for a vehicle further includes: a top cover, the top cover is installed on the frame, the top cover includes: a main cover, the main cover has an opening, and the main cover is provided with the first beam mounting point; a maintenance cover, the maintenance cover is detachably arranged on the main cover and covers the opening; the plurality of seat mounting beams further include: a second seat mounting beam, the second seat mounting beam is arranged on the main cover and a seat is mounted together with the first seat mounting beam, the second seat mounting beam is located on one side of the maintenance cover, and the beam mounting point is provided at one end of the second seat mounting beam away from the maintenance cover; a third seat mounting beam, the third seat mounting beam is arranged on the main cover and a seat is mounted together with the first seat mounting beam, the third seat mounting beam is located on one side of the maintenance cover, and the beam mounting point is provided at one end of the third seat mounting beam away from the maintenance cover.

[0032] A vehicle according to a third aspect of the utility model comprises: the above-mentioned battery pack assembly for a vehicle.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 It is a schematic structural diagram of a battery pack and a battery pack assembly according to an embodiment of the utility model;

[0036] Figure 2 is an exploded view of a battery pack and a battery pack assembly according to an embodiment of the utility model;

[0037] Figure 3 It is a partial schematic diagram of a battery pack and a battery pack assembly according to an embodiment of the utility model;

[0038] Figure 4 It is another partial schematic diagram of a battery pack and a battery pack assembly according to an embodiment of the utility model (without a top cover).

[0039] Reference numerals:

[0040] 100. battery pack; 200. battery pack assembly;

[0041] 1. Top cover; 11. First top cover mounting point; 12. Second top cover mounting point; 13. Main cover; 131. Opening; 14. Maintenance cover;

[0042] 2. frame; 21. side beam; 211. first side beam mounting point; 212. second side beam mounting point;

[0043] 3. Seals;

[0044] 4. Seat mounting crossbeam; 41. First mounting plate; 42. Second mounting plate; 421. Top plate; 4211. Avoidance groove; 422. Side plate; 423. Flange; 43. Crossbeam mounting point; 44. First seat mounting crossbeam; 45. Second seat mounting crossbeam; 46. Third seat mounting crossbeam; 5. Tray; 6. Longitudinal beam. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0046] Reference below Figure 1-Figure 4 The battery pack 100 according to the embodiment of the utility model can be integrated with the seat mounting beam 4 and connected to the side beam 21, so as to enhance the connection depth between the seat mounting beam 4 and the battery pack 100 and simplify the installation structure on the one hand, and facilitate the battery pack 100 to form a relatively independent individual on the other hand.

[0047] Combination Figure 1-Figure 4 As shown, the battery pack 100 according to the first embodiment of the utility model includes a frame 22. The frame 2 includes a side beam 21 extending along the length direction of the vehicle, and the side beam 21 has a first side beam mounting point 211, and the first side beam mounting point 211 is suitable for mounting the seat mounting cross beam 4.

[0048] Among them, a first side beam mounting point 211 is arranged on the side beam 21 along the length direction of the vehicle (that is, the front and rear direction), so that the seat mounting beam 4 can be conveniently connected to the side beam 21 as a whole through the first side beam mounting point 211, thereby increasing the connection depth between the seat mounting beam 4 and the battery pack 100, and further improving the connection stability between the seat mounting beam 4 and the battery pack 100.

[0049] Optionally, refer to Figure 1-Figure 4 As shown, the battery pack 100 includes a top cover 1 and a frame 2. For example, the top cover 1 is mounted on the top of the frame 2, so that the two can form a semi-enclosed enclosure structure, thereby providing structural protection for the battery cells in the battery pack 100; and the side beams 21 are connected to the circumferential edge of the top cover 1, so that the weight and spatial mode of each other can be increased, thereby improving the bending and torsional rigidity and structural strength of the two, thereby improving the reliability of the top cover 1 and the side beams 21 in protecting the battery cells in the battery pack 100, and extending the service life of the battery pack 100.

[0050] Specifically, the top cover 1 has a first top cover mounting point 11, the top cover 1 is mounted on the frame 2, the frame 2 includes a side beam 21 extending along the length direction of the vehicle, the side beam 21 has a first side beam mounting point 211, the first top cover mounting point 11 and the first side beam mounting point 211 correspond in position, and the first top cover mounting point 11 and the first side beam mounting point 211 are suitable for installing the seat mounting cross beam 4.

[0051] Among them, along the length direction of the vehicle (that is, the front and rear direction), the top cover 1 and the side beam 21 are respectively provided with corresponding first top cover mounting points 11 and first side beam mounting points 211, so that the connection depth between the seat mounting beam 4 and the battery pack 100 can be increased, thereby improving the connection stability between the seat mounting beam 4 and the battery pack 100.

[0052] At the same time, compared with the installation of traditional battery pack assemblies (the battery pack is highly integrated with the lower body), the embodiment in this case integrates the seat mounting beam 4 only on the battery pack 100 (that is, the seat mounting beam 4 is installed and fixed through the top cover 1 and the frame 2). The battery pack 100 can be an independent individual, so that on the basis of retaining the integration of the battery pack 100 and the vehicle body, when the battery pack 100 has quality problems and causes failure, it is only necessary to remove the battery pack 100 from the entire vehicle without using the entire lower body, thereby simplifying the difficulty of repairing the battery pack 100 and reducing the time and cost of repair.

[0053] In addition, by integrating the seat mounting beam 4 on the top cover 1, the deformation risk of the top cover 1 can be reduced, the structural strength of the top cover 1 can be increased, the service life of the top cover 1 can be extended, and the protective effect of the top cover 1 on the battery cells and other components in the battery pack 100 can be further improved.

[0054] Moreover, the end of the seat mounting cross beam 4 extends to the side beam 21, and is installed through the first top cover mounting point 11 and the first side beam mounting point 211. Compared with the seat mounting cross beam 4 being installed and fixed on the threshold beam inside the top cover 1 or outside the frame 2, since it is connected to the edge of the top cover 1 (supported by the side beam 21), the stress on the weak stress area inside the top cover 1 can be reduced, and the connection depth between the seat mounting cross beam 4 and the battery pack 100 can be enhanced (the seat mounting cross beam 4 establishes a connection with the top cover 1 and the side beam 21). system), and can also improve the installation strength of the seat mounting beam 4 and the battery pack 100, and there is no need to separately design the side beam 21 to install the installation point of the seat mounting beam 4, which can simplify the installation structure and facilitate the top of the battery pack 100 to form a relatively independent individual (the seat mounting beam 4 integrated on the top cover 1 is not connected to the vehicle body beams on both sides of the battery pack 100), thereby taking into account the connection firmness of the seat mounting beam 4 when it is integrated into the top cover 1 and the relative independence of the battery pack 100, thereby improving the practicality and economic efficiency of repair of the vehicle.

[0055] Therefore, by setting up the battery pack 100, the seat mounting beam 4 can be integrated and connected to the side beam 21, which can enhance the connection depth between the seat mounting beam 4 and the battery pack 100 and simplify the installation structure on the one hand, and also facilitate the battery pack 100 to form a relatively independent individual on the other hand, thereby improving the structural reliability when the battery pack 100 is integrated with the seat mounting beam 4 and the convenience when the battery pack 100 is repaired.

[0056] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the first top cover mounting point 11 is configured as a first through hole, and the first side beam mounting point 211 is configured as a first threaded hole; the seat mounting cross beam 4 is suitable for being mounted on the first top cover mounting point 11 and the first side beam mounting point 211 by means of a first fastener that passes through the first through hole and is threadedly engaged with the first threaded hole. For example, the first fastener may be a bolt, a stud or a screw, but is not limited thereto.

[0057] Such an arrangement can simplify the structure of the first top cover mounting point 11 , ensure the structural strength and stability of the top cover 1 , and extend the service life of the top cover 1 .

[0058] In addition, the first side beam mounting point 211 on the side beam 21 is threadedly connected to the end of the first fastener to increase the connection stability between the first fastener and the side beam 21. During the installation of the battery pack 100, the first fastener sequentially passes through the seat mounting cross beam 4, the first top cover mounting point 11 and the first side beam mounting point 211, and the top cover 1 is clamped by the first fastener and the side beam 21 to achieve a tight connection between the side beam 21 and the top cover 1.

[0059] According to some optional embodiments of the present invention, combined with Figure 2 As shown, there are multiple first top cover mounting points 11 to form a first top cover mounting point group, and there are multiple first side beam mounting points 211 to form a first side beam mounting point group. The positions of the multiple first top cover mounting points 11 of the first top cover mounting point group and the multiple first side beam mounting points 211 of the first side beam mounting point group correspond one to one, and the end of the seat mounting beam 4 is suitable for being installed on the first top cover mounting point group and the first side beam mounting point group.

[0060] Among them, in the length direction of the vehicle, multiple first top cover mounting points 11 can form a first top cover mounting point group, multiple first side beam mounting points 211 can form a first side beam mounting point group, and the positions of the first top cover mounting point group and the first side beam mounting point group correspond to each other. In this way, the number of mounting points when the seat mounting beam 4 is connected to the top cover 1 and the side beam 21 can be increased, thereby further increasing the connection strength between the three, thereby improving the connection reliability.

[0061] In addition, by grouping multiple first top cover installation points 11 and multiple first side beam installation points 211, on the one hand, it is convenient for the three to quickly match their respective installation point positions and quantities during the multi-group installation process, and on the other hand, it is also convenient for the matching division of multiple installation points.

[0062] Specifically, there are multiple first top cover mounting point groups and multiple first side beam mounting point groups, and the multiple first top cover mounting point groups and the multiple first side beam mounting point groups correspond one to one, and the end of each seat mounting beam 4 is suitable for being installed on a corresponding first top cover mounting point group and first side beam mounting point group.

[0063] It can be understood that the multiple first top cover mounting point groups and the multiple first side beam mounting point groups can provide mounting connection positions for the multiple seat mounting cross beams 4, that is, the multiple seat mounting cross beams 4 can be arranged on the top cover 1 at intervals along the length direction of the vehicle, thereby improving the structural strength of the top cover 1 and the number of seat mounting cross beams 4 to be installed. Among them, the end of each seat mounting cross beam 4 can be connected to the edge of the top cover 1 in the lateral direction (that is, the left and right direction) through the corresponding first top cover mounting point group and the first side beam mounting point group, so that on the basis of integrating the seat mounting cross beam 4 into the top cover 1, the deformation risk of the top cover 1 can also be reduced, and the strength and rigidity of the top cover 1 can be increased.

[0064] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the top cover 1 has a second top cover mounting point 12, and the first top cover mounting point 11 and the second top cover mounting point 12 are spaced apart along the length direction of the vehicle; the side beam 21 has a second side beam mounting point 212, and the first side beam mounting point 211 and the second side beam mounting point 212 are spaced apart along the length direction of the vehicle, and the second top cover mounting point 12 and the second side beam mounting point 212 are positioned correspondingly, so as to install the top cover 1 on the side beam 21.

[0065] Among them, along the length direction of the vehicle, the second top cover mounting point 12 and the second side beam mounting point 212 are respectively arranged on the top cover 1 and the side beam 21, and the first top cover mounting point 11 and the second top cover mounting point 12 are arranged at intervals, so as to avoid interference between the two and make them relatively independent. The first side beam mounting point 211 and the second side beam mounting point 212 are arranged at intervals, and the two do not interfere with each other and are relatively independent.

[0066] In addition, the positions of the second top cover mounting point 12 and the second side beam mounting point 212 correspond to each other, which is conducive to the top cover 1 being independently mounted and fixed on the side beam 21. In other words, the first top cover mounting point 11 and the first side beam mounting point 211 can simultaneously establish a connection relationship between the seat mounting cross beam 4, the top cover 1 and the side beam 21 to fasten the three as a whole, and the top cover 1 and the side beam 21 can also be connected together through the second top cover mounting point 12 and the second side beam mounting point 212, thereby increasing the connection strength between the top cover 1 and the side beam 21.

[0067] Specifically, combined Figure 2 As shown, the second top cover mounting point 12 is configured as a second through hole, and the second side beam mounting point 212 is configured as a second threaded hole; the cover plate is suitable for being mounted on the side beam 21 by a second fastener that passes through the second through hole and is threadedly engaged with the second threaded hole. For example, the second fastener may be a bolt, a stud or a screw, but is not limited thereto.

[0068] It is understandable that such an arrangement can simplify the structure of the second top cover mounting point 12, ensure the structural strength and structural stability of the top cover 1, and extend the service life of the top cover 1. The second side beam mounting point 212 on the side beam 21 is threadedly connected to the end of the second fastener to increase the connection stability between the second fastener and the side beam 21. During the installation of the battery pack 100, the second fastener passes through the second top cover mounting point 12 and the second side beam mounting point 212 in sequence, and the top cover 1 is clamped by the second fastener and the side beam 21 to achieve the connection between the side beam 21 and the top cover 1.

[0069] Furthermore, combined with Figure 2 and Figure 4 As shown, there are multiple second top cover mounting points 12 and multiple second side beam mounting points 212, and the positions of the multiple second top cover mounting points 12 and the multiple second side beam mounting points 212 correspond one to one; wherein, on a side beam 21, the distance between two adjacent first side beam mounting points 211 is d1, and the distance between two adjacent second side beam mounting points 212 is d2, and d1 and d2 satisfy the relationship: d1<d2.

[0070] That is to say, the multiple second top cover mounting points 12 on the top cover 1 and the multiple second side beam mounting points 212 on the side beam 21 form a one-to-one corresponding positional relationship, so that the multiple second fasteners can smoothly penetrate and connect the top cover 1 and the side beam 21 into a whole, preventing the top cover 1 and the side beam 21 from being misaligned with each other.

[0071] Moreover, on a side beam 21, the distance between two adjacent first side beam mounting points 211 is small, so that the size of the seat mounting beam 4 along the length direction of the vehicle can be adapted, and the distance is too large to cause multiple first side beam mounting points 211 to be unable to be matched on the same seat mounting beam 4 at the same time; because the top cover 1 is connected to the top of the side beam 21 along the circumferential direction, the connection matching size between the top cover 1 and the side beam 21 is large, and the distance between two adjacent second side beam mounting points 212 is large. In this way, on the basis of meeting the connection strength between the top cover 1 and the side beam 21, redundant mounting points can be reduced, the installation workload can be reduced, and more space for arranging the first top cover mounting points 11 can be provided for the seat mounting beam 4.

[0072] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the first side beam mounting point 211 is arranged on the top surface of the side beam 21, so that the seat mounting cross beam 4 above the side beam 21 can be directly installed in conjunction with the first side beam mounting point 211 on the top of the side beam 21, thereby effectively improving the rationality of the layout.

[0073] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the battery pack 100 also includes a seal 3, which is sealed between the side beam 21 and the top cover 1. The seal 3 is provided with sealing installation points, which correspond to the positions of the first top cover installation point 11 and the first side beam installation point 211 respectively.

[0074] It can be understood that the seal 3 fills and seals between the side beam 21 and the top cover 1, and a sealing installation point corresponding to the position of the first top cover installation point 11 and the first side beam installation point 211 is provided on the seal 3, so that the seal 3 can form a seal on the gap between the side beam 21 and the top cover 1, and the seal 3 will not interfere with the mutual fastening between the seat mounting beam 4, the top cover 1 and the side beam 21 (the first fastener can smoothly pass through the seat mounting beam 4, the first top cover installation point 11, the sealing installation point and the first side beam installation point 211 in sequence), thereby ensuring the sealing of the battery pack 100 while avoiding the structural interference problem caused by the seal 3 in the fastening installation between the top cover 1 and the side beam 21.

[0075] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the side beams 21 are relatively arranged along the width direction of the vehicle, each side beam 21 is provided with a first side beam mounting point 211, and the two opposite edges of the roof cover 1 in the width direction of the vehicle are provided with a first roof cover mounting point 11.

[0076] Among them, the side beams 21 are arranged at intervals in the width direction of the vehicle, and the side beams 21 extend along the length direction of the vehicle. The first top cover mounting points 11 are arranged on the two edges of the top cover 1 in the width direction of the vehicle, so that it can be suitable for connecting with the lateral ends of the seat mounting beam 4. This makes it convenient to arrange the seat mounting beam 4 along the width direction of the vehicle, so that the seat slide rail can be installed on the seat mounting beam 4 along the length direction of the vehicle, and the seat mounting beam 4 can form a stable supporting effect for the seat slide rail.

[0077] According to some optional embodiments of the present invention, the top cover 1 includes a metal layer and an insulating layer, and the insulating layer is arranged on a side of the metal layer facing the frame 2 .

[0078] Among them, metal has the advantages of high structural strength and high hardness, so the metal layer can increase the structural reliability of the top cover 1; the insulating layer can prevent the current from being conducted from the frame 2 to the top cover 1, thereby preventing the current of the battery pack 100 from being conducted to the passenger compartment through the top cover 1, and ensuring the mutual insulation between the frame 2 and the top cover 1. The insulating layer can be a composite material layer.

[0079] Combination Figure 1 and Figure 2 As shown, a battery pack assembly 200 for a vehicle according to an embodiment of the second aspect of the utility model includes a battery pack 100 of the above-mentioned embodiment and a seat mounting beam 4, the seat mounting beam 4 is arranged on the top cover 1, the seat mounting beam 4 has a beam mounting point 43, the first top cover mounting point 11, the first side beam mounting point 211 and the beam mounting point 43 are positioned correspondingly, so as to install the seat mounting beam 4 on the top cover 1 and the side beam 21.

[0080] In detail, the seat mounting cross beam 4 is arranged above the top cover 1, and can be used to provide installation and fixing conditions for the seat, and a cross beam mounting point 43 corresponding to the first top cover mounting point 11 and the first side beam mounting point 211 is provided on the seat mounting cross beam 4, so that it is convenient to connect the seat mounting cross beam 4 with the top cover 1 and the side beam 21 as a whole.

[0081] According to some optional embodiments of the present invention, combined with Figure 1 and Figure 2 As shown, the seat mounting crossbeam 4 includes a first mounting plate 41 and a second mounting plate 42, the first mounting plate 41 is arranged on the top cover 1, the second mounting plate 42 is arranged on the side of the first mounting plate 41 away from the top cover 1 and the frame 2, and the second mounting plate 42 is provided with a seat mounting portion for installing a seat; wherein the first mounting plate 41 and / or the second mounting plate 42 is provided with a crossbeam mounting point 43.

[0082] For example, the first mounting plate 41 and the second mounting plate 42 can enhance each other's structural strength and bending and torsional rigidity, and can also reduce the risk of deformation of the top cover 1 toward the seat mounting cross beam 4. The first mounting plate 41 is connected to the upper surface of the top cover 1, and the second mounting plate 42 is connected to the side of the first mounting plate 41 away from the top cover 1, and the second mounting plate 42 is provided with a seat mounting portion, so that the seat mounting cross beam 4 provides installation and connection conditions for the seat slide rail. In addition, the first mounting plate 41 and / or the second mounting plate 42 are provided with a cross beam mounting point 43, so that installation and connection conditions can be provided between the seat mounting cross beam 4 and the top cover 1, thereby improving the connection stability between the seat mounting cross beam 4 and the top cover 1.

[0083] Specifically, combined Figure 3 As shown, the second mounting plate 42 includes a top plate 421, a side plate 422 and a flange 423, the top plate 421 is provided with a seat mounting portion, the side plates 422 are respectively connected to both sides of the top plate 421, the flanges 423 are respectively connected to the side plates 422, and the flanges 423 are attached to the first mounting plate 41; wherein, a crossbeam mounting point 43 is provided in a fitting area between the flange 423 and the first mounting plate 41; and / or a crossbeam mounting point 43 is provided in an area of ​​the first mounting plate 41 opposite to the top plate 421.

[0084] It can be understood that the flanges 423 on both sides of the second mounting plate 42 are in contact with the upper surface of the first mounting plate 41, the side panels 422 are bent to connect to the flanges 423, and the side panels 422 extend to the side away from the first fixed plate, and the top plate 421 is connected between the flanges 423 on both sides. In this way, a closed cross-section can be constructed between the first mounting plate 41 and the second mounting plate 42 in the length direction of the vehicle, that is, the seat mounting beam 4 forms a closed cavity structure in the width direction of the vehicle, which can effectively enhance the structural strength and bending and torsional stiffness of the seat mounting beam 4.

[0085] Moreover, beam mounting points 43 are provided on the flanges 423 on both sides of the top plate 421 and on the fitting areas of the first mounting plate 41, so that the seat mounting beam 4 can be provided with beam mounting points 43 on both sides along the length direction of the vehicle, thereby improving the uniformity of the connection force between the seat mounting beam 4 and the top cover 1 on both sides along the length direction of the vehicle.

[0086] Furthermore, combined with Figure 3 and Figure 4 As shown, a crossbeam mounting point 43 is provided in an area of ​​the first mounting plate 41 opposite to the top plate 421 , and an avoidance groove 4211 corresponding to the crossbeam mounting point 43 is provided on the top plate 421 .

[0087] That is to say, in the up-down direction, the area where the first mounting plate 41 and the top plate 421 are opposite is provided with a crossbeam mounting point 43, that is, the first mounting plate 41 is also provided with a crossbeam mounting point 43 in the middle along the length direction of the vehicle, so that the connection force points between the first mounting plate 41 and the top cover 1 can be increased, thereby increasing the connection force path between the two, and further improving the connection strength between the two. In addition, the top plate 421 is provided with an avoidance groove 4211 corresponding to the position of the crossbeam mounting point 43, so that when tightening the place, the operation of the tightening tool and the installation of the crossbeam mounting point 43 here can be facilitated.

[0088] Specifically, the first mounting plate 41 is connected to the top cover 1 by welding. Compared with traditional riveting, screwing and other methods, welding has lower cost and greater connection strength, so the first mounting plate 41 and the top cover 1 are welded to effectively improve the connection firmness between the two. For example, the first mounting plate 41 and the top cover 1 are integrated into one by welding, and the welding form can be spot welding.

[0089] According to some optional embodiments of the present invention, combined with Figure 1-Figure 4 As shown, the side beams 21 are relatively arranged along the width direction of the vehicle, and the seat mounting beams 4 are multiple and include: a first seat mounting beam 44, and beam mounting points 43 are arranged at both ends of the first seat mounting beam 44 to correspond to the position of the first side beam mounting point 212 of the side beam 21 opposite to the width direction of the vehicle.

[0090] Among them, the first seat mounting beam 44 extends through the top cover 1 along the vehicle width direction, and beam mounting points 43 are provided at both lateral ends of the first seat mounting beam 44. In this way, the same seat mounting beam 4 can form corresponding mounting point relationships with the top cover 1 and the side beam 2 on both sides in the vehicle width direction, thereby improving the force uniformity and connection stability between the seat mounting beam 4 and the top cover 1.

[0091] Specifically, the top cover 1 includes a main cover 13 and a maintenance cover 14, the main cover 13 has an opening 131, the main cover 13 is provided with a first beam mounting point, and the maintenance cover 14 is detachably arranged on the main cover 13 and covers the opening 131; the plurality of seat mounting beams 4 also include a second seat mounting beam 45 and a third seat mounting beam 46, the second seat mounting beam 45 is arranged on the main cover 13, and the second seat mounting beam 45 and the first seat mounting beam 44 are used to mount a seat together, the second seat mounting beam 45 is located on one side of the maintenance cover 14, and a beam mounting point 43 is provided at one end of the second seat mounting beam 45 away from the maintenance cover 14, the third seat mounting beam 46 is arranged on the main cover 13, and the third seat mounting beam 46 and the first seat mounting beam 44 are used to mount a seat together, the third seat mounting beam 46 is located on one side of the maintenance cover 14, and a beam mounting point 43 is provided at one end of the third seat mounting beam 46 away from the maintenance cover 14.

[0092] That is, the opening 131 is formed on the main cover 13. When the maintenance cover 14 is placed on the opening 131, the integrity of the top cover 1 can be improved, thereby protecting the battery cells in the battery pack 100. When the maintenance cover 14 is away from the opening 131, it is convenient for the user to inspect the batteries in the battery pack 100 through the opening 131. For example, the opening 131 is provided on a side adjacent to the front of the vehicle, so that the user can repair the batteries in the battery pack 100 through the opening 131.

[0093] Among them, since the second seat mounting crossbeam 45 and the third seat mounting crossbeam 46 need to avoid the maintenance cover 14, the second seat mounting crossbeam 45 and the third seat mounting crossbeam 46 are not arranged on the main cover 13 along the width direction of the vehicle body, so that the user can smoothly open the maintenance cover 14 to inspect the internal structure of the battery pack 100; and the second seat mounting crossbeam 45 and the third seat mounting crossbeam 46 are respectively provided with a crossbeam mounting point 43 at one end away from the maintenance cover 14, so that the first fastener is convenient to pass through the seat mounting crossbeam 4, the top cover 14 in sequence. The second seat mounting crossbeam 45 and the third seat mounting crossbeam 46 are connected as a whole by fasteners at one end close to the maintenance cover 14, respectively, and the seat mounting crossbeam 4, the top cover 1 and the longitudinal beam 6 (the longitudinal beam 6 is a reserved installation point for the second seat mounting crossbeam 45 and the third seat mounting crossbeam 46) are connected as a whole, thereby improving the connection strength between each other, and the second seat mounting crossbeam 45 and the third seat mounting crossbeam 46 are firmly connected and fixed on the battery pack 1, thereby improving the installation stability of the battery pack 100. In addition, the longitudinal beam 6 inside the battery pack 100 shares the same beam with the seat mounting crossbeam 4, so that it is convenient to eliminate the traditional seat mounting crossbeam 4 on the basis of ensuring the structural strength of the internal frame of the battery pack 100, thereby reducing the installation position height of the seat connected to the seat slide rail, thereby increasing the available space of the vehicle's passenger compartment in the height direction, and improving the vehicle's comfort level.

[0094] In addition, the maintenance cover 14 is a reserved high-voltage maintenance port (i.e., opening 131). When the high-voltage system of the battery pack 100 fails, the maintenance cover 14 can be removed for inspection. The maintenance cover 14 and the top cover 1 of the battery pack 100 are mainly sealed by sealing foam and bolt fixing.

[0095] The vehicle according to the embodiment of the third aspect of the utility model includes the battery pack assembly 200 for the vehicle of the above embodiment. The vehicle having the battery pack assembly 200 can improve the structural reliability when the battery pack 100 is integrated with the seat mounting beam 4 and the convenience when the battery pack 100 is repaired, thereby improving the market competitiveness of the vehicle.

[0096] In addition, the battery pack 100 also includes a tray 5, and battery cells are arranged in a cavity structure composed of the tray 5, the frame 2 and the top cover 1; a longitudinal beam 6 extending along the length direction of the vehicle is also provided between the top cover 1 and the tray 5, and the longitudinal beam 6 can support the weak force area in the middle part of the top cover 1, thereby reducing the risk of deformation of the top cover 1 and extending its service life.

[0097] Other structures and operations of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0098] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0099] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0100] 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" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0101] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: The frame comprises a side beam extending along the length direction of the vehicle, the side beam having a first side beam mounting point, and the first side beam mounting point is suitable for mounting a seat mounting cross beam.

2. The battery pack according to claim 1, characterized in that: The first side beam mounting point is configured as a first threaded hole, and the seat mounting cross beam is suitable for being mounted on the first side beam mounting point via a first fastener threadedly matched with the first threaded hole.

3. The battery pack according to claim 1, characterized in that: The first side beam mounting points are multiple to form a first side beam mounting point group, and the end of the seat mounting cross beam is suitable for being mounted on the first side beam mounting point group.

4. The battery pack according to claim 3, characterized in that: There are a plurality of first side beam mounting point groups, and each end of the seat mounting cross beam is suitable for being mounted on a corresponding first side beam mounting point group.

5. The battery pack according to claim 1, characterized in that: The side beam has a second side beam mounting point, the first side beam mounting point and the second side beam mounting point are arranged at intervals along the length direction of the vehicle, and the second side beam mounting point mounts the roof to the side beam.

6. The battery pack according to claim 5, characterized in that: The second side beam mounting point is configured as a second threaded hole, and the top cover is adapted to be mounted on the side beam via a second fastener threadedly engaged through the second threaded hole.

7. The battery pack according to claim 5, characterized in that: The first side beam mounting points are multiple to form a first side beam mounting point group, and the end of the seat mounting cross beam is suitable for mounting on the first side beam mounting point group; There are multiple mounting points of the second side beam. On one side beam, the distance between two adjacent mounting points of the first side beam is d1, and the distance between two adjacent mounting points of the second side beam is d2. d1 and d2 satisfy the relationship: d1<d2.

8. The battery pack according to claim 1, characterized in that: The first side beam mounting point is arranged on the top surface of the side beam.

9. The battery pack according to claim 1, characterized in that: The side beams are arranged opposite to each other along the width direction of the vehicle, and each of the side beams is provided with the first side beam mounting point.

10. The battery pack according to claim 1, characterized in that: Also includes: A top cover is installed on the frame, the top cover has a first top cover installation point, the first top cover installation point and the first side beam installation point correspond in position, and the first top cover installation point and the first side beam installation point are suitable for installing a seat mounting cross beam.

11. The battery pack according to claim 10, characterized in that: The first top cover mounting point is configured as a first through hole, and the first side beam mounting point is configured as a first threaded hole; The seat mounting cross beam is suitable for being mounted on the first top cover mounting point and the first side beam mounting point by means of a first fastener passing through the first through hole and threadedly engaged with the first threaded hole.

12. The battery pack according to claim 10, characterized in that: There are multiple first top cover mounting points to form a first top cover mounting point group, there are multiple first side beam mounting points to form a first side beam mounting point group, the positions of the multiple first top cover mounting points of the first top cover mounting point group and the multiple first side beam mounting points of the first side beam mounting point group correspond one to one, and the end of the seat mounting cross beam is suitable for being installed on the first top cover mounting point group and the first side beam mounting point group.

13. The battery pack according to claim 12, characterized in that: There are multiple first top cover mounting point groups and multiple first side beam mounting point groups, and the multiple first top cover mounting point groups and the multiple first side beam mounting point groups correspond one to one. Each end of the seat mounting cross beam is suitable for being installed on a corresponding one of the first top cover mounting point groups and the first side beam mounting point groups.

14. The battery pack according to claim 10, characterized in that: The roof has a second roof mounting point, the first roof mounting point and the second roof mounting point are spaced apart along the length direction of the vehicle; The side beam has a second side beam mounting point, the first side beam mounting point and the second side beam mounting point are spaced apart along the length direction of the vehicle, and the second roof mounting point and the second side beam mounting point correspond in position so that the roof can be mounted on the side beam.

15. The battery pack according to claim 14, characterized in that: The second top cover mounting point is configured as a second through hole, and the second side beam mounting point is configured as a second threaded hole; The top cover is suitable for being mounted on the side beam via a second fastener passing through the second through hole and threadedly engaged with the second threaded hole.

16. The battery pack according to claim 14, characterized in that: The first top cover mounting point is multiple to form a first top cover mounting point group, the first side beam mounting point is multiple to form a first side beam mounting point group, the multiple first top cover mounting points of the first top cover mounting point group and the multiple first side beam mounting points of the first side beam mounting point group have one-to-one correspondence, and the end of the seat mounting cross beam is suitable for being mounted on the first top cover mounting point group and the first side beam mounting point group; There are multiple second top cover mounting points, and multiple second side beam mounting points, and the multiple second top cover mounting points and the multiple second side beam mounting points have one-to-one correspondence; Among them, on one of the side beams, the distance between two adjacent mounting points of the first side beam is d1, the distance between two adjacent mounting points of the second side beam is d2, and d1 and d2 satisfy the relationship: d1<d2.

17. The battery pack according to claim 10, characterized in that: Also includes: A sealing member is sealed between the side beam and the top cover, and the sealing member is provided with sealing installation points, and the sealing installation points correspond to the positions of the first top cover installation point and the first side beam installation point respectively.

18. The battery pack according to claim 10, characterized in that: The top cover comprises: Metal layer; An insulating layer is arranged on a side of the metal layer facing the frame.

19. A battery pack assembly for a vehicle, characterized in that: include: The battery pack according to any one of claims 1 to 18; The seat mounting cross beam has a cross beam mounting point, and the first side beam mounting point corresponds to the cross beam mounting point in position, so that the seat mounting cross beam can be mounted on the side beam.

20. The battery pack assembly for a vehicle according to claim 19, characterized in that: The seat mounting crossbeam comprises: a first mounting plate; a second mounting plate, the second mounting plate being arranged on a side of the first mounting plate away from the frame, the second mounting plate being provided with a seat mounting portion for mounting a seat; Wherein, the first mounting plate and / or the second mounting plate are provided with the crossbeam mounting point.

21. The battery pack assembly for a vehicle according to claim 20, characterized in that: The second mounting plate comprises: a top plate, the top plate being provided with the seat mounting portion; Side panels, the side panels are respectively connected to two sides of the top panel; Flanged edges, the flanges are respectively connected to the side panels and attached to the first mounting plate; Wherein, the crossbeam mounting point is provided in the fitting area between the flange and the first mounting plate; and / or The crossbeam mounting point is disposed on the area of ​​the first mounting plate opposite to the top plate.

22. The battery pack assembly for a vehicle according to claim 21, characterized in that: The crossbeam mounting point is arranged in the area of ​​the first mounting plate opposite to the top plate, and the top plate is provided with an avoidance groove corresponding to the crossbeam mounting point.

23. The battery pack assembly for a vehicle according to claim 20, characterized in that: Also includes: A top cover is installed on the frame, and the first mounting plate is connected to the top cover by welding.

24. The battery pack assembly for a vehicle according to claim 19, characterized in that: The side beams are arranged opposite to each other along the width direction of the vehicle, and the seat mounting cross beams are multiple and include: A first seat mounting cross beam is provided with the cross beam mounting points at both ends of the first seat mounting cross beam so as to correspond to the positions of the first side beam mounting points of the side beams opposite to each other along the width direction of the vehicle.

25. The battery pack assembly for a vehicle according to claim 24, characterized in that: Also includes: A top cover, the top cover is mounted on the frame, and the top cover comprises: a main cover having an opening; A maintenance cover, which is detachably disposed on the main cover and covers the opening; A plurality of said seat mounting cross beams further comprises: a second seat mounting cross beam, the second seat mounting cross beam being arranged on the main cover and being used together with the first seat mounting cross beam to mount a seat, the second seat mounting cross beam being located at one side of the maintenance cover, and the cross beam mounting point being arranged at one end of the second seat mounting cross beam away from the maintenance cover; A third seat mounting cross beam is provided on the main cover and is used together with the first seat mounting cross beam to mount a seat. The third seat mounting cross beam is located on one side of the maintenance cover, and the cross beam mounting point is provided at one end of the third seat mounting cross beam away from the maintenance cover.

26. A vehicle, characterized in that: include: A battery pack assembly for a vehicle as described in any one of claims 19 to 25.

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