Battery pack assembly of integrated seat and vehicle

Abstract

The utility model provides a battery pack assembly integrated with a seat and a vehicle, and relates to the field of new energy automobiles, the battery pack assembly comprises a lower box body, a box cover and a plurality of battery cells, the plurality of battery cells are arranged in the lower box body, and the box cover is fixedly arranged on the top surface of the lower box body; the seat mounting assembly comprises a first plate body and a plurality of sliding rail assemblies, the first plate body is horizontally and fixedly arranged on the face, away from the lower box body, of the box cover, and the sliding rail assemblies are horizontally and fixedly arranged on the face, away from the box cover, of the first plate body at intervals and used for being in sliding connection with a seat support. According to the battery pack assembly disclosed by the utility model, the seat mounting assembly is integrated on the box cover of the battery pack, so that compared with an independent seat and an independent battery pack in the prior art, the effects of simplifying the whole vehicle and reducing the weight can be achieved, and the internal space of the vehicle is saved; meanwhile, the seat and the battery pack which are integrated in the utility model can save one floor for placing the seat in the vehicle, so that the effects of saving the cost and reducing the weight can be achieved.

Description

Technical Field

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

[0002] With the rapid development of new energy vehicles and the increasing share of electric vehicles in the vehicle market, consumers have higher and higher requirements for electric vehicles. The battery life of electric vehicles is one of the important indicators that consumers consider when purchasing electric vehicles. How to improve the battery life of electric vehicles is a problem faced by battery manufacturers and vehicle manufacturers. The current mainstream new energy vehicle solutions are to directly install independent battery packs on the body, resulting in the battery packs and seats occupying independent spaces, which leads to limited space for weight reduction of the entire vehicle. In addition, the independently set battery packs and seats will cause the weight of the entire vehicle to increase. Utility Model Content

[0003] In view of this, the utility model proposes a battery pack assembly and a vehicle with integrated seats to solve the problem that the battery pack and seats independently arranged on the vehicle need to occupy their own spaces, resulting in limited space for reducing the weight of the entire vehicle and increased weight of the entire vehicle.

[0004] The technical solution of the utility model is achieved in this way:

[0005] In a first aspect, the utility model provides a battery pack assembly integrated with a seat, which comprises a lower box body, a box cover and a plurality of battery cells, wherein the plurality of battery cells are arranged in the lower box body, and the box cover is fixedly arranged on the top surface of the lower box body;

[0006] It also includes a seat installation assembly, which includes a first plate body and a plurality of slide rail assemblies. The first plate body is horizontally fixedly arranged on a side of the box cover away from the lower box body, and the plurality of slide rail assemblies are horizontally fixedly arranged at intervals on a side of the first plate body away from the box cover for sliding connection with the seat support.

[0007] Based on the above technical solution, preferably, the surface of the first plate is recessed upward to form a plurality of spaced support protrusions, the slide rail assembly is fixedly arranged on the top surface of the support protrusions, and the length direction of the slide rail assembly is perpendicular to the length direction of the support protrusions.

[0008] Further, preferably, the slide rail assembly includes a slide rail bracket, a connector and a positioning pin;

[0009] The slide rail bracket is horizontally fixedly arranged on the top surface of the supporting protrusion, and a slide groove with a top surface opening is opened on the slide rail bracket along its length direction, and the slide groove is used for sliding connection with the seat support, and limit pins are fixedly arranged at both ends of the slide groove in the length direction;

[0010] A plurality of connecting pieces are arranged at intervals along the length direction of the slide rail bracket, one end of the connecting piece is fixedly connected to the slide rail bracket, and the other end is fixedly connected to the top surface of the supporting protrusion;

[0011] At least two positioning pins are provided, one end of which is fixedly connected to the bottom surface of the slide rail bracket, and the other end of which is vertically downwardly connected to the positioning hole on the top surface of the supporting protrusion.

[0012] Furthermore, preferably, the box cover comprises a cover body, the bottom edge of the cover body horizontally extends outward to form a connecting edge, and the connecting edge is fixedly connected to the top opening end of the lower box body;

[0013] The seat mounting assembly also includes a second plate body, which has a mounting plate with a U-shaped structure. The mounting plate covers the top and side surfaces of the cover body. The bottom ends of the two vertical side walls of the mounting plate are horizontally provided with flange edges fixedly connected to the connecting edges. The first plate body is horizontally fixedly arranged on the top surface of the mounting plate.

[0014] On the basis of the above technical solution, preferably, the lower box body includes a transverse side beam, a front side beam, a rear side beam, a box body longitudinal beam and a bottom plate;

[0015] The front side beam and the rear side beam are arranged in parallel and spaced apart, two transverse side beams are arranged in parallel between the front side beam and the rear side beam, and the front side beam, the front side beam and the rear side beam are enclosed to form a box frame;

[0016] The bottom plate is fixedly arranged on the bottom surface of the box frame, and the box frame and the bottom plate are enclosed to form an installation cavity for placing the battery cell;

[0017] The box longitudinal beam is arranged in the installation cavity, and at least one box longitudinal beam is arranged along the length direction of the box frame, and both ends of the box longitudinal beam are respectively vertically fixedly connected to the horizontal side beams.

[0018] Further, preferably, the lower box body also includes a front longitudinal beam and a rear longitudinal beam, and the front longitudinal beam and the rear longitudinal beam are both horizontally arranged in the installation cavity, and the two ends of the front longitudinal beam and the rear longitudinal beam in the length direction are respectively vertically fixedly connected to the transverse side beam, a plurality of front support beams are connected between the front side beam and the front longitudinal beam, and a plurality of rear support beams are connected between the rear side beam and the rear longitudinal beam, and the front support beams and the rear support beams are both spaced apart along the width direction of the box body frame.

[0019] On the basis of the above technical solution, preferably, the lower box body also includes at least one locking assembly, a locking sleeve and a locking nut of the locking assembly, and the locking sleeve sequentially passes through the bottom plate, the box body longitudinal beam, the box cover, the second plate body and the first plate body and is fixedly connected to the locking nut.

[0020] Preferably, the transverse side beams, the front side beams, the rear side beams, the box longitudinal beams, the front longitudinal beams and the rear longitudinal beams are all provided with a plurality of closed cavities along their lengths.

[0021] Preferably, a first sealing member is provided between the top surface of the box frame and the connecting edge, and a second sealing member is provided between the box frame and the bottom plate.

[0022] In a second aspect, the utility model further discloses a vehicle, comprising the seat-integrated battery pack assembly described in the first aspect.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] (1) The battery pack assembly disclosed in the utility model integrates the seat mounting assembly on the cover of the battery pack, which can simplify the entire vehicle and reduce its weight compared to the independent seats and battery packs in the prior art. At the same time, the integrated seats and battery packs in this embodiment can reduce the floor space in the vehicle for placing seats, which can also save costs and reduce weight. In addition, the seats and battery packs are integrated together, which saves space inside the vehicle and makes the design of the entire vehicle more compact and efficient. In addition, since the seats and battery packs share space, the weight of the vehicle can be reduced and the energy efficiency of the vehicle can be improved. Therefore, this battery pack assembly with integrated seats can improve the endurance of electric vehicles.

[0025] (2) By adding the support protrusion, the support force of the first plate on the seat is effectively enhanced, reducing the possibility of the seat shaking and loosening during driving. In addition, the support protrusion can improve the structural strength of the seat to a certain extent, thereby better coping with the influence of these external factors and ensuring the safety and comfort of passengers.

[0026] (3) By setting the front longitudinal beam and the rear longitudinal beam, when the battery pack vibrates, the vibration force applied to the front and rear longitudinal beams cannot be directly transmitted to the battery cells due to the obstruction of the front and rear longitudinal beams, thereby protecting the battery cells.

[0027] (4) Through the setting of the locking assembly, the locking sleeve passes through the bottom plate, the box longitudinal beam, the box cover, the second plate body and the first plate body in sequence, and is fixedly connected with the locking nut, thereby tightly connecting these components together, enhancing the structural stability and safety of the entire battery pack assembly. Through the fixation of the locking nut, the locking assembly can effectively prevent the bottom plate, the box longitudinal beam, the box cover and the plate body from loosening or falling off, ensuring the stability of the battery pack assembly during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 The battery pack assembly of the integrated seat disclosed in the utility model;

[0030] Figure 2 It is a schematic diagram of the assembly structure of the box cover and the seat installation assembly disclosed in the utility model;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of the slide rail assembly disclosed in the utility model;

[0033] Figure 5 It is a structural schematic diagram of the lower box body disclosed in the utility model;

[0034] Figure 6 It is a schematic diagram of the plane structure of the horizontal side beam disclosed in the utility model;

[0035] Figure 7 for Figure 1 A partial enlarged view of point B in the middle;

[0036] Reference numerals:

[0037] 1. Lower box body; 2. Box cover; 3. Battery cell; 4. Seat installation assembly; 41. First plate body; 42. Slide rail assembly; 411. Support protrusion; 421. Slide rail bracket; 4211. Slide groove; 422. Connector; 423. Positioning pin; 424. Limit pin; 4111. Positioning hole; 21. Cover body; 22. Connecting edge; 43. Second plate body; 431. Mounting plate; 432. Flange edge; 11. Horizontal side beam; 12. Front side beam; 13. Rear side beam; 14. Box longitudinal beam; 15. Bottom plate; 10. Installation cavity; 16. Front longitudinal beam; 17. Rear longitudinal beam; 18. Front support beam; 19. Rear support beam; K. Box frame; 5. Locking assembly; 51. Locking sleeve; 52. Locking nut; S1. First seal; S2. Second seal; Q. Cavity. DETAILED DESCRIPTION

[0038] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] like Figure 1 As shown, combined Figure 2-4 The utility model discloses a battery pack assembly integrated with a seat, comprising a lower box body 1, a box cover 2 and a plurality of battery cells 3, wherein the plurality of battery cells 3 are arranged in the lower box body 1, and the box cover 2 is fixedly arranged on the top surface of the lower box body 1.

[0040] The lower box 1 is one of the main components of the battery pack assembly, and is used to accommodate the battery cell 3 and other battery components. The box cover 2 is the top covering part of the lower box 1, and is used to fix and protect the battery cell 3. The battery cell 3 is the core component of the battery, storing and releasing electrical energy.

[0041] The above-mentioned lower box, box cover and multiple battery cells constitute a relatively traditional battery pack in the prior art. With the rapid development of new energy vehicles, the lightweighting of the entire vehicle has received more and more attention from the industry. The current mainstream new energy vehicle solutions are that the battery pack is directly assembled on the body of the vehicle. The body is a traditional body. During the entire assembly process of the battery pack to the body, the space for weight reduction of the entire vehicle is limited. During the entire assembly process of the battery pack being installed in the vehicle, the battery pack and the seat must occupy independent space, which results in a smaller space in the vehicle that can be used to reduce weight, and the independently arranged battery pack and seat will cause the weight of the entire vehicle to increase.

[0042] In order to solve the above problems, the solution adopted in this embodiment is to set a seat mounting assembly 4 on the basis of the existing battery pack structure. Specifically, the seat mounting assembly 4 includes a first plate body 41 and a plurality of slide rail assemblies 42. The first plate body 41 is horizontally fixedly arranged on the side of the box cover 2 away from the lower box body 1 to provide a seat mounting base. The plurality of slide rail assemblies 42 are horizontally fixedly arranged at intervals on the side of the first plate body 41 away from the box cover 2 to be used for sliding connection with the seat support to realize seat installation and adjustment.

[0043] The battery pack assembly disclosed in this embodiment is to integrate the seat mounting assembly 4 on the box cover 2 of the battery pack. Compared with the independent seats and battery packs in the prior art, it can simplify the whole vehicle and reduce the weight. At the same time, the integrated seats and battery packs in this embodiment can reduce the floor for placing seats in the vehicle, which can also save costs and reduce weight. In addition, the seats and battery packs are integrated together, which saves space inside the vehicle and makes the design of the whole vehicle more compact and efficient. In addition, since the seats and battery packs share space, the weight of the vehicle can be reduced and the energy efficiency of the vehicle can be improved. Therefore, this battery pack assembly with integrated seats can improve the endurance of electric vehicles.

[0044] As some preferred implementations, refer to the attached Figure 2-4 As shown, the surface of the first plate 41 is recessed upward to form a plurality of support protrusions 411 arranged at intervals, the slide rail assembly 42 is fixedly disposed on the top surface of the support protrusions 411 , and the length direction of the slide rail assembly 42 is perpendicular to the length direction of the support protrusions 411 .

[0045] By adopting the above technical solution, by forming support protrusions 411 arranged at intervals on the surface of the first plate body 41, this structural setting provides support for the fixation of the slide rail assembly 42, making the seat installation more stable.

[0046] Since the seat usually bears the weight of the passengers and may be subjected to various vibrations and shocks during driving, the stability and load-bearing capacity of the seat are of great importance. By adding the support protrusion 411, the support force of the first plate 41 on the seat is effectively enhanced, and the possibility of shaking and loosening of the seat during driving is reduced. In addition, the support protrusion 411 can improve the structural strength of the seat to a certain extent, thereby better coping with the influence of these external factors and ensuring the safety and comfort of the passengers.

[0047] In this embodiment, refer to the attached Figure 4 As shown, the slide rail assembly 42 includes a slide rail bracket 421 , a connecting member 422 and a positioning pin 423 .

[0048] The slide rail bracket 421 is horizontally fixed on the top surface of the supporting protrusion 411. A slide groove 4211 with an opening on the top surface is opened on the slide rail bracket 421 along its length direction. The slide groove 4211 is used for sliding connection with the seat support so that the seat can be easily installed and adjusted. Limit pins 424 are fixedly provided at both ends of the slide groove 4211 in the length direction. The limit pins 424 are used to limit the sliding travel range of the seat bracket in the slide groove 4211.

[0049] A plurality of connecting members 422 are arranged at intervals along the length direction of the slide rail bracket 421, one end of the connecting member 422 is fixedly connected to the slide rail bracket 421, and the other end is fixedly connected to the top surface of the support protrusion 411. In actual operation, the connecting member 422 is usually welded to the support protrusion 411, so as to fix the slide rail bracket 421 to the top surface of the first plate body 41.

[0050] At least two positioning pins 423 are provided, one end of which is fixedly connected to the bottom surface of the slide rail bracket 421, and the other end is vertically connected to the positioning hole 4111 on the top surface of the support protrusion 411. When the slide rail bracket 421 is installed on the first plate body 41, the positioning pin 423 is connected to the positioning hole 4111 to realize the position positioning of the slide rail bracket 421 on the first plate body 41. When the position positioning of the slide rail bracket 421 and the first plate body 41 is determined, the connection piece 422 and the top surface of the support protrusion 411 are welded to fix the slide rail assembly 42 on the top surface of the first plate body 41, which provides accurate position positioning for the installation of the seat.

[0051] The structure and installation method of the slide rail assembly 42 disclosed in this embodiment can effectively improve the stability, safety and reliability of the battery pack assembly integrated with the seat, while providing a more convenient and flexible solution for the installation and adjustment of the seat.

[0052] In order to achieve a fixed connection between the box cover 2 and the lower box body 1, the present embodiment provides a structural arrangement for the box cover 2. Specifically, the box cover 2 includes a cover body 21. The bottom edge of the cover body 21 extends horizontally outward to form a connecting edge 22. The connecting edge 22 is fixedly connected to the top open end of the lower box body 1. In the present embodiment, the entire box cover 2 is a cover structure. Compared with a simple thin plate structure, the box cover 2 of the present embodiment has a higher structural strength. In addition, the box cover 2 is a cover structure, which can increase the height of the cavity formed after the box cover 2 is connected to the lower box body 1, so that the design height of the lower box body 1 can be reduced. In the present embodiment, preferably, the connecting edge 22 of the edge of the cover body 21 is bolted to the top of the lower box body 1.

[0053] The seat installation assembly 4 of this embodiment also includes a second plate 43, Figure 3 As shown, the second plate body 43 has a mounting plate 431 with a U-shaped structure, and the mounting plate 431 covers the top surface and the side surface of the cover body 21. The bottom ends of the two vertical side walls of the mounting plate 431 are horizontally provided with flange edges 432 fixedly connected to the connecting edge 22. The flange edge 432 and the connecting piece 422 can be fixedly connected to the lower box body 1 together by bolts, and are horizontally fixed on the top surface of the mounting plate 431 on the first plate body 41.

[0054] With the above technical solution, the second plate 43 is fixedly arranged on the top surface of the box cover 2, which provides a stable platform so that the first plate 41 of the seat mounting assembly 4 can be horizontally fixed on its top surface. In this way, the seat can be safely connected to the box cover 2 of the battery pack assembly. In addition to serving as a platform for seat installation, the second plate 43 can also increase the structural support of the entire battery pack assembly. By covering the top and side surfaces of the box cover 2 with the second plate 43, the stability and structural strength of the box cover 2 can be enhanced to prevent it from deforming or loosening during driving.

[0055] As some preferred implementations, refer to the attached Figure 5 As shown, the lower box body 1 of this embodiment includes a transverse side beam 11 , a front side beam 12 , a rear side beam 13 , a box body longitudinal beam 14 and a bottom plate 15 .

[0056] The front side beam 12 and the rear side beam 13 are arranged in parallel and at intervals, and the two horizontal side beams 11 are arranged in parallel between the front side beam 12 and the rear side beam 13. The front side beam 12, the front side beam 12 and the rear side beam 13 enclose a box frame K; the box frame K provides a structural foundation for supporting the box cover 2 and the seat mounting assembly 4 and fixing the battery cell 3.

[0057] The bottom plate 15 is fixedly disposed on the bottom surface of the box frame K. The box frame K and the bottom plate 15 enclose a mounting cavity 10 for placing the battery cell 3 . The mounting cavity 10 is used to support and protect the battery cell 3 .

[0058] The box longitudinal beam 14 is arranged in the installation cavity 10, and at least one box longitudinal beam 14 is arranged along the length direction of the box frame K, and the two ends of the box longitudinal beam 14 are respectively vertically fixedly connected to the transverse side beam 11. On the one hand, the box longitudinal beam 14 plays a role in strengthening the structural strength of the installation cavity 10. On the other hand, the box longitudinal beam 14 divides the installation cavity 10 into multiple chambers, so as to install multiple battery cell 3 groups. It can be understood that a battery cell group is placed in each chamber, and each battery cell group is composed of multiple battery cells 3 stacked and arranged. Thirdly, through the setting of the longitudinal beam, the battery cell group can also be fixed in the chamber, thereby limiting the displacement of the battery cell 3 in the lateral and longitudinal directions, and improving the structural stability of the battery cell 3 in the battery pack.

[0059] As some preferred embodiments, the lower box body 1 also includes a front longitudinal beam 16 and a rear longitudinal beam 17, and the front longitudinal beam 16 and the rear longitudinal beam 17 are both horizontally arranged in the installation cavity 10, and the two ends of the front longitudinal beam 16 and the rear longitudinal beam 17 in the length direction are respectively vertically fixedly connected to the transverse side beam 11, and a plurality of front support beams 18 are connected between the front side beam 12 and the front longitudinal beam 16, and a plurality of rear support beams 19 are connected between the rear side beam 13 and the rear longitudinal beam 17, and the front support beams 18 and the rear support beams 19 are both spaced apart along the width direction of the box frame K.

[0060] In this embodiment, the front longitudinal beam 16 is horizontally arranged on one side of the front side beam 12, and the rear longitudinal beam 17 is horizontally arranged on one side of the rear side beam 13. In this way, a cavity for placing the three groups of battery cells is formed between the front longitudinal beam 16, the rear longitudinal beam 17 and the box longitudinal beam 14. At the same time, the front longitudinal beam 16, the rear longitudinal beam 17 and the box longitudinal beam 14 cooperate with each other to fix the three groups of battery cells. For example, in one cavity, the top of the three groups of battery cells is wrapped around a fixed side strip, and the two ends of the fixed side strip are respectively fixedly connected to the top of the front longitudinal beam 16 and the top of the box longitudinal beam 14.

[0061] In addition, due to the arrangement of the front longitudinal beam 16 and the rear longitudinal beam 17, during the vibration of the battery pack, the vibration force applied by the front side beam 12 and the rear side beam 13 cannot be directly transmitted to the battery cell 3 due to the obstruction of the front longitudinal beam 16 and the rear longitudinal beam 17, thereby protecting the battery cell 3.

[0062] By disposing the front support beam 18 and the rear support beam 19, the overall structural strength of the lower box body 1 can be improved.

[0063] In order to achieve effective fixation between the battery pack and the seat mounting assembly 4, the present embodiment also discloses at least one locking assembly 5. In the present embodiment, the locking assembly 5 is arranged at positions corresponding to the box longitudinal beam 14 and the seat mounting assembly 4. Specifically, one or more locking assemblies 5 can be arranged in the length direction of the box longitudinal beam 14.

[0064] In this embodiment, refer to the attached Figure 7 As shown, the locking assembly 5 includes a locking sleeve 51 and a locking nut 52 . The locking sleeve 51 sequentially passes through the bottom plate 15 , the box longitudinal beam 14 , the box cover 2 , the second plate body 43 and the first plate body 41 and is fixedly connected to the locking nut 52 .

[0065] With the above technical solution, the locking sleeve 51 passes through the bottom plate 15, the box longitudinal beam 14, the box cover 2, the second plate 43 and the first plate 41 in sequence, and is fixedly connected with the locking nut 52, so that these components are tightly connected together, enhancing the structural stability and safety of the entire battery pack assembly. Through the fixation of the locking nut 52, the locking assembly 5 can effectively prevent the bottom plate 15, the box longitudinal beam 14, the box cover 2 and the plate from loosening or falling off, ensuring the stability of the battery pack assembly during driving.

[0066] Preferably, the transverse side beam 11, the front side beam 12, the rear side beam 13, the box longitudinal beam 14, the front longitudinal beam 16 and the rear longitudinal beam 17 are provided with a plurality of closed cavities Q along their lengths. Figure 6 FIG. 1 is a cross-sectional view of the transverse side beam 11 , which is a structure with a closed cross-section formed by an extrusion process.

[0067] With the above technical solution, the setting of the internal closed cavity Q increases the overall structural strength of the transverse side beam 11, the front side beam 12, the rear side beam 13, the box longitudinal beam 14, the front longitudinal beam 16 and the rear longitudinal beam 17, making it more able to withstand various forces and vibrations during the vehicle's driving. The closed cavity Q can provide additional structural strength and reduce the weight of the beam, thereby reducing the weight of the lower box 1 and improving the vehicle's endurance.

[0068] A first seal S1 is provided between the top surface of the box frame K and the connecting edge 22, and a second seal S2 is provided between the box frame K and the bottom plate 15. The provision of the first seal S1 and the second seal S2 effectively improves the sealing of the battery pack assembly, prevents external environmental factors from entering the box, and thus protects the safe operation of the battery pack.

[0069] Based on the same inventive concept, an embodiment of the present application discloses a vehicle, including a battery pack assembly with an integrated seat as provided in the embodiment of the present application.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack assembly integrated with a seat, comprising a lower box (1), a box cover (2) and a plurality of battery cells (3), wherein the plurality of battery cells (3) are arranged in the lower box (1), and the box cover (2) is fixedly arranged on the top surface of the lower box (1), characterized in that: The invention also comprises a seat installation assembly (4), wherein the seat installation assembly (4) comprises a first plate body (41) and a plurality of slide rail assemblies (42), wherein the first plate body (41) is horizontally fixedly arranged on a side of the box cover (2) away from the lower box body (1), and the plurality of slide rail assemblies (42) are horizontally fixedly arranged at intervals on a side of the first plate body (41) away from the box cover (2) for sliding connection with the seat support.

2. The seat-integrated battery pack assembly as claimed in claim 1, characterized in that: The surface of the first plate body (41) is recessed upward to form a plurality of support protrusions (411) arranged at intervals, the slide rail assembly (42) is fixedly arranged on the top surface of the support protrusions (411), and the length direction of the slide rail assembly (42) is perpendicular to the length direction of the support protrusions (411).

3. The seat-integrated battery pack assembly as claimed in claim 2, characterized in that: The slide rail assembly (42) comprises a slide rail bracket (421), a connecting piece (422) and a positioning pin (423); The slide rail bracket (421) is horizontally fixedly arranged on the top surface of the supporting protrusion (411), and a slide groove (4211) with a top surface opening is provided on the slide rail bracket (421) along its length direction, and the slide groove (4211) is used for sliding connection with the seat support, and limit pins (424) are respectively fixedly arranged at both ends of the slide groove (4211) in the length direction; A plurality of connecting members (422) are arranged at intervals along the length direction of the slide rail bracket (421); one end of the connecting member (422) is fixedly connected to the slide rail bracket (421), and the other end is fixedly connected to the top surface of the supporting protrusion (411); At least two positioning pins (423) are provided, one end of which is fixedly connected to the bottom surface of the slide rail bracket (421), and the other end of which is vertically downwardly connected to the positioning hole (4111) on the top surface of the supporting protrusion (411).

4. The seat-integrated battery pack assembly as claimed in claim 2, characterized in that: The box cover (2) comprises a cover body (21), the bottom edge of the cover body (21) horizontally extends outward to form a connecting edge (22), and the connecting edge (22) is fixedly connected to the top opening end of the lower box body (1); The seat mounting assembly (4) also includes a second plate body (43), the second plate body (43) having a mounting plate (431) in a U-shaped structure, the mounting plate (431) covering the top surface and side surfaces of the cover body (21), the bottom ends of the two vertical side walls of the mounting plate (431) being horizontally provided with flange edges (432) fixedly connected to the connecting edge (22), and the first plate body (41) being horizontally fixedly provided on the top surface of the mounting plate (431).

5. The seat-integrated battery pack assembly as claimed in claim 4, characterized in that: The lower box body (1) comprises a transverse side beam (11), a front side beam (12), a rear side beam (13), a box body longitudinal beam (14) and a bottom plate (15); The front side beam (12) and the rear side beam (13) are arranged in parallel and spaced apart, two transverse side beams (11) are arranged in parallel between the front side beam (12) and the rear side beam (13), and the front side beam (12), the front side beam (12) and the rear side beam (13) are enclosed to form a box frame (K); The bottom plate (15) is fixedly arranged on the bottom surface of the box frame (K), and the box frame (K) and the bottom plate (15) are enclosed to form a mounting cavity (10) for placing the battery cell (3); The box longitudinal beam (14) is arranged in the installation cavity (10), and at least one box longitudinal beam (14) is arranged along the length direction of the box frame (K), and both ends of the box longitudinal beam (14) are respectively vertically fixedly connected to the transverse side beam (11).

6. The seat-integrated battery pack assembly as claimed in claim 5, characterized in that: The lower box body (1) further comprises a front longitudinal beam (16) and a rear longitudinal beam (17), wherein the front longitudinal beam (16) and the rear longitudinal beam (17) are both horizontally arranged in the installation cavity (10), and the two ends of the front longitudinal beam (16) and the rear longitudinal beam (17) in the length direction are respectively vertically fixedly connected to the transverse side beam (11), a plurality of front support beams (18) are connected between the front side beam (12) and the front longitudinal beam (16), and a plurality of rear support beams (19) are connected between the rear side beam (13) and the rear longitudinal beam (17), and the front support beams (18) and the rear support beams (19) are both arranged at intervals along the width direction of the box body frame (K).

7. The seat-integrated battery pack assembly as claimed in claim 5, characterized in that: The invention also comprises at least one locking assembly (5), wherein the locking assembly (5) comprises a locking sleeve (51) and a locking nut (52), wherein the locking sleeve (51) sequentially passes through the bottom plate (15), the box longitudinal beam (14), the box cover (2), the second plate body (43) and the first plate body (41) and is fixedly connected to the locking nut (52).

8. The seat-integrated battery pack assembly as claimed in claim 6, characterized in that: The transverse side beam (11), the front side beam (12), the rear side beam (13), the box longitudinal beam (14), the front longitudinal beam (16) and the rear longitudinal beam (17) are all provided with a plurality of closed cavities (Q) along their lengths.

9. The seat-integrated battery pack assembly as claimed in claim 5, characterized in that: A first sealing member (S1) is provided between the top surface of the box frame (K) and the connecting edge (22), and a second sealing member (S2) is provided between the box frame (K) and the bottom plate (15).

10. A vehicle, characterized in that: A seat-integrated battery pack assembly comprising the seat as claimed in any one of claims 1 to 9.

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