A vehicle structure and automobile

Abstract

The application provides a vehicle structure and an automobile, and relates to the technical field of automobile manufacturing. The application provides a vehicle structure, which comprises a lower vehicle body frame, a battery pack and a seat assembly. The lower vehicle body frame is formed with a containing cavity. The battery pack is arranged in the containing cavity and connected with the lower vehicle body frame. The seat assembly is connected to the top of the battery pack. Through the optimization design of the vehicle structure, the battery pack directly integrates the function of the front floor assembly in the conventional technology, can provide a support structure for the installation of the seat, cancels the conventional front floor assembly, promotes the lightweight of the whole vehicle, saves the production cost, and directly connects the seat assembly to the battery pack. The attitude height of the seat assembly is significantly reduced to release the Z-direction space, improve the utilization rate of the Z-direction space of the automobile, and adaptively reduce the height of the whole vehicle. In addition, the seat assembly can be directly assembled to the battery pack and then integrated to the lower vehicle body frame to reduce the component assembly process.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a vehicle structure and an automobile. Background Technology

[0002] Battery-chassis integration is key to improving space utilization and reducing overall vehicle weight in new energy vehicles. Traditional new energy vehicle chassis architectures generally employ a layered structural design, for example... Figure 1 As shown, the front floor assembly is mounted on the lower body frame, and the battery pack is mounted at the bottom of the front floor assembly and is independent of the front floor assembly, forming a double structural redundancy, which is not conducive to the overall vehicle weight reduction; in addition, the seat is mounted on the seat crossbeam on the top of the front floor assembly, and the distance between the seat mounting point and the battery pack in the Z direction is relatively high, resulting in a high seat posture and low Z-direction space utilization; furthermore, the seat and battery pack are assembled independently, which makes the component assembly process complicated.

[0003] In view of the above, this application is hereby submitted. Utility Model Content

[0004] This application provides a vehicle structure and automobile, which aims to solve at least one technical problem existing in the prior art.

[0005] This application provides a vehicle structure, including: a lower body frame, a battery pack, and a seat assembly; the lower body frame has a receiving cavity; the battery pack is disposed in the receiving cavity and connected to the lower body frame; the seat assembly is connected to the top of the battery pack.

[0006] In some implementations, during assembly, the seat assembly is connected to the battery pack and integrated as a single unit mounted on the lower body frame along the Z-direction common upper part.

[0007] In some embodiments, the battery pack includes a battery pack housing, at least one crossbeam, and battery cells; the battery pack housing forms a cavity; the crossbeam is arranged in the cavity along the Y direction and connected to the inner wall of the battery pack housing, dividing the cavity into multiple sub-cavities, and the battery cells are arranged in the sub-cavities; wherein, a seat is supported on the top of the housing and connected to the crossbeam in the Z direction.

[0008] In some embodiments, the lower vehicle frame includes a frame body and a sealing structure; the frame body forms a receiving cavity, and the sealing structure is arranged circumferentially on the frame body along the receiving cavity; the battery pack housing is circumferentially fitted and connected to the sealing structure, and connected to the frame body along the Z direction.

[0009] In some implementations, the sealing structure includes a sealing strip or structural adhesive.

[0010] In some embodiments, there are two crossbeams, and the two crossbeams are spaced apart along the X direction; the seat assembly includes a seat body and a seat bracket, the seat body is connected to the seat bracket along the Z direction; the two ends of the seat bracket along the X direction are respectively connected to the two crossbeams along the Z direction.

[0011] In some embodiments, the seat bracket includes a front bracket, a rear bracket, and a plurality of connectors; the front bracket has a first connecting hole along the Z direction; the rear bracket is connected to the front bracket and has a second connecting hole along the Z direction; the top of the crossbeam has a first mating hole along the Z direction; the connectors pass through the first connecting hole or the second connecting hole and are connected to the first mating hole on the top of the corresponding crossbeam.

[0012] In some embodiments, the seat bracket further includes a positioning element; the front end bracket has a positioning hole along the Z direction, and the positioning hole and the first connecting hole are spaced apart along the X direction; the top of the crossbeam has a second mating hole along the Z direction, and the second mating hole and the first mating hole are spaced apart along the X direction; the positioning element passes through the positioning hole and is installed in the second mating hole.

[0013] In some implementations, the beam has multiple cavities spaced apart along the Z-direction.

[0014] This application also provides an automobile, including the vehicle structure as described above.

[0015] The vehicle structure and automobile provided in this application have at least the following advantages compared to the prior art:

[0016] Through optimized design of the vehicle structure, which comprises three main components: the lower body frame, the battery pack, and the seat assembly, the lower body frame has a cavity for housing the battery pack. The battery pack is placed within this cavity and then connected to the lower body frame. The seat assembly is directly connected to the top of the battery pack. This allows the battery pack to directly integrate the functions of the traditional front floor assembly, providing a support structure for seat installation and eliminating the need for a traditional front floor assembly. This results in a lighter vehicle and reduced production costs. Furthermore, the direct connection of the seat assembly to the battery pack significantly reduces its height, freeing up Z-axis space and improving the utilization of Z-axis space. The overall vehicle height can also be adjusted accordingly. Additionally, the seat assembly can be directly integrated into the battery pack and then mounted as a single unit onto the lower body frame, reducing assembly steps.

[0017] The vehicle structure and other features and advantages of the automobile provided in this application will be described in detail in the following specific embodiments. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is an assembly diagram of a traditional new energy vehicle chassis architecture;

[0020] Figure 2 This is a schematic diagram of the overall structure of the vehicle structure provided according to an embodiment of this application;

[0021] Figure 3 This is an assembly diagram of a vehicle structure provided according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the AA section of a vehicle structure provided according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of a partial structure a of section AA according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a partial structure b of section AA provided according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the BB cross-section of a vehicle structure provided according to an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of a car module according to an embodiment of this application.

[0027] The attached figures are labeled as follows:

[0028] 100. Vehicle structure;

[0029] 10. Lower vehicle frame; 11. Frame body; 111. Sealing support; 12. Sealing structure; R1. Receiving cavity;

[0030] 20. Battery pack; 21. Battery pack casing; 211. Battery pack top cover; 22. Crossbeam; 23. Battery cell; R2. Chamber;

[0031] 30. Seat assembly; 31. Seat body; 32. Seat bracket; 321. Front bracket; 322. Rear bracket; 323. Connector; 324. Positioning component;

[0032] 1000, Automobile. Detailed Implementation

[0033] In the description of this utility model, it should be understood that if terms such as "center," "inner," "outer," "axial," "radial," and "circumferential" appear, indicating orientation or positional relationship, unless otherwise specified, they are understood to be based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, features specified with "first" or "second" for descriptive purposes only should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The description of "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] It should be noted that the coordinate descriptions such as "X direction, Y direction, Z direction" mentioned in this application are all interpreted with reference to the vehicle coordinate system, that is, the straight line where the front of the vehicle is located is the X direction, the axial direction of the front wheel is the Y direction, and the direction perpendicular to the ground is the Z direction.

[0036] As mentioned above, in traditional new energy vehicle chassis architecture, the front floor assembly and battery pack are independent, resulting in structural redundancy that hinders vehicle lightweighting. The battery pack is mounted on the lower body frame, while the seats are mounted on the seat crossbeams on top of the front floor assembly. There is a 45mm-60mm gap between the seat mounting point and the battery pack in the Z-direction, leading to a high seat posture, unutilized Z-direction space, and complex assembly procedures. Therefore, the overall concept of this application is to eliminate the original front floor assembly and integrate its functions into the battery pack 20. This allows the seat assembly 30 to be directly mounted on the battery pack 20, effectively reducing structural redundancy, promoting vehicle lightweighting, and lowering the seat posture by at least 45mm-60mm to free up Z-direction space. Furthermore, connecting the seat assembly 30 to the battery pack 20 and then mounting it to the lower body frame 10 further simplifies assembly.

[0037] Based on the above concept, and referring to Figure 2 and Figure 3 As shown, Figure 2 This is a schematic diagram of the overall structure of the vehicle structure provided according to an embodiment of this application; Figure 3 This is an assembly diagram of a vehicle structure provided according to an embodiment of this application.

[0038] This application provides a vehicle structure 100, including: a lower body frame 10, a battery pack 20, and a seat assembly 30; the lower body frame 10 forms a receiving cavity R1; the battery pack 20 is disposed in the receiving cavity R1 and connected to the lower body frame 10; the seat assembly 30 is connected to the top of the battery pack 20.

[0039] In this embodiment, the lower vehicle frame 10 serves as the fixing mechanism for the battery pack 20, forming a receiving cavity R1 that matches the outer contour shape of the battery pack 20. The receiving cavity R1 is open both upwards and downwards along the Z-axis, so that the battery pack 20 can be fixedly connected in the receiving cavity R1 and the rear seat assembly 30 can be directly connected to the battery pack 20. In addition to power supply, the battery pack 20 also integrates the function of fixing the seat assembly 30. Compared with the traditional structure, the seat assembly 30 can be directly connected to the battery pack 20, so that there is no front floor assembly structure between the battery pack 20 and the seat assembly 30 affecting the seat height and posture, thereby freeing up the Z-axis space of the vehicle structure 100, which can effectively improve the utilization rate of the Z-axis space. Moreover, since the front floor assembly structure is eliminated, the number of vehicle parts is reduced, which is more conducive to lightweighting and simplification of the assembly process.

[0040] like Figure 3 As shown, in some embodiments, during assembly, the seat assembly 30 is connected to the battery pack 20 and integrated as a single unit mounted on the lower body frame 10 along the Z-direction.

[0041] It is understandable that during the assembly of the vehicle structure 100, the seat assembly 30 is first connected to the top of the battery pack 20 and integrated with the battery pack 20. Then, the entire assembly is moved from the bottom of the lower body frame 10 upwards. After the seat assembly 30 passes through the receiving cavity R1, the battery pack 20 is received in the receiving cavity R1 and fixedly connected to the lower body frame 10 to realize the assembly of the vehicle structure 100. It can be seen that after the front floor assembly is eliminated in this application, the seat assembly 30 is directly connected to the battery pack 20 to realize modular assembly, which greatly simplifies the component assembly process.

[0042] refer to Figures 4 to 6 As shown, Figure 4 This is a schematic diagram of the AA section of a vehicle structure provided according to an embodiment of this application; Figure 5 This is a schematic diagram of a partial structure a of section AA according to an embodiment of this application; Figure 6 This is a schematic diagram of a partial structure b of section AA provided according to an embodiment of this application.

[0043] In some embodiments, the battery pack 20 includes a battery pack housing 21, at least one crossbeam 22, and battery cells 23; the battery pack housing 21 forms a cavity R2; the crossbeam 22 is arranged in the Y direction within the cavity R2 and connected to the inner wall of the battery pack housing 21, dividing the cavity R2 into multiple sub-cavities, and the battery cells 23 are arranged in the sub-cavities; wherein, the seat assembly 30 is supported on the top of the battery pack housing 21 and connected in the Z direction to the crossbeam 22.

[0044] According to an example embodiment of this application, the battery pack housing 21 is generally cuboid in shape. The battery pack housing 21 is mainly composed of a battery pack cover 211, a base plate spaced apart from the battery pack cover 211, and a connecting side connecting the battery pack cover 211 and the base plate, which together form a chamber R2. One or more crossbeams 22 are arranged in the Y direction in the chamber R2 and fixedly connected to the inner wall of the battery pack housing 21, thereby dividing the chamber R2 into multiple sub-chambers and providing space for the battery cells 23. Since the crossbeams 22 connected to the seat assembly 30 are located inside the battery pack housing 21, the battery pack cover 211 can be provided with connecting through holes so that the seat assembly 30 can pass through and be fixed to the crossbeams 22. Thus, the mounting point of the seat assembly 30 is located inside the battery pack 20, and the seat posture can be further reduced compared to being fixed to the battery pack cover 211, thereby improving the vehicle interior space and providing more possibilities for reducing the overall vehicle height.

[0045] refer to Figure 7 As shown, Figure 7 This is a schematic cross-sectional view of a vehicle structure provided according to an embodiment of this application. In some embodiments, the lower body frame 10 includes a frame body 11 and a sealing structure 12; the frame body 11 forms a receiving cavity R1, and the sealing structure 12 is arranged on the frame body 11 circumferentially along the receiving cavity R1; the battery pack housing 21 is fitted and connected to the sealing structure 12 circumferentially and connected to the frame body 11 along the Z direction.

[0046] In this embodiment, the lower vehicle frame 10 includes a frame body 11 and a sealing structure 12. The frame body 11 forms a receiving cavity R1, and a sealing support 111 is provided around the top of the receiving cavity R1 on the frame body 11. The sealing support 111 is mainly used to increase the load surface of the sealing structure 12. The sealing structure 12 is disposed on the sealing support 111 and is attached to the top of the battery pack housing 21 in the Z direction to achieve a seal between the battery pack housing 21 and the lower vehicle frame 10. Furthermore, the bottom edge of the battery pack housing 21 can be extended circumferentially, which is more conducive to fitting the receiving cavity R1 formed by the frame body 11. The extended part can be fastened to the bottom of the frame body 11 in the Z direction by bolts, thereby achieving the fastening of the battery pack housing 21.

[0047] In some embodiments, the sealing structure 12 includes a sealing strip or structural adhesive, both of which have high adhesive strength and can meet the requirements for airtightness and connection.

[0048] Continue to refer to Figures 4 to 6 In some embodiments, there are two crossbeams 22, and the two crossbeams 22 are arranged at intervals along the X direction; the seat assembly 30 includes a seat body 31 and a seat bracket 32, the seat body 31 is connected to the seat bracket 32 ​​along the Z direction; the two ends of the seat bracket 32 ​​along the X direction are respectively connected to the two crossbeams 22 along the Z direction.

[0049] Two crossbeams 22 are spaced apart along the X-axis within the battery pack housing 21, jointly supporting the seat assembly 30 to improve its stability. The seat assembly 30 includes a seat body 31 and a seat bracket 32. The seat bracket 32 ​​is arched, with the seat body 31 connected to the top of the seat bracket 32 ​​along the Z-axis. The bottom ends of the seat bracket 32 ​​along the X-axis are respectively connected to the two crossbeams 22 along the Z-axis, thus securing the seat assembly 30. It should be understood that the design of the seat bracket 32 ​​not only secures the seat body 31 to the two crossbeams 22 within the battery pack 20 but also facilitates the seat body 31's forward / backward or height adjustment based on the seat bracket 32.

[0050] In some embodiments, the seat bracket 32 ​​includes a front bracket 321, a rear bracket 322, and a plurality of connectors 323; the front bracket 321 has a first connecting hole along the Z direction; the rear bracket 322 is connected to the front bracket 321 and has a second connecting hole along the Z direction; the top of the crossbeam 22 has a first mating hole along the Z direction; the connectors 323 pass through the first connecting hole or the second connecting hole and are connected to the first mating hole at the top of the corresponding crossbeam 22.

[0051] In this embodiment, the rear support 322 is connected to the front support 321. The rear support 322 and the front support 321 can be integrally formed. Each connector 323 can be a bolt and a nut. The front support 321 has a first connecting hole along the Z direction, and the rear support 322 has a second connecting hole along the Z direction. The top of the crossbeam 22 has a first mating hole along the Z direction. The nut can be set at the bottom of the first mating hole. The bolt passes through the first connecting hole / second connecting hole, the battery pack cover 211, and the first mating hole in sequence from top to bottom and is then fastened to the nut, thereby fixing the rear support 322 and the front support 321. Of course, each connector 323 can be just a bolt, that is, by setting a suitable thread in the first mating hole, the bolt can also be fixed, thereby fixing the rear support 322 and the front support 321 on the front and rear crossbeams 22.

[0052] To enable rapid assembly, in some embodiments, the seat bracket 32 ​​further includes a positioning element 324; the front bracket 321 has a positioning hole along the Z direction, and the positioning hole and the first connecting hole are spaced apart along the X direction; the top of the crossbeam 22 has a second mating hole along the Z direction, and the second mating hole and the first mating hole are spaced apart along the X direction; the positioning element 324 passes through the positioning hole and is installed in the second mating hole.

[0053] In the Z direction, the positioning hole and the second mating hole can be aligned. When the seat bracket 32 ​​is installed, the front bracket 321 first fixes the positioning piece 324 through the positioning hole into the second mating hole at the top of the crossbeam 22 to achieve the positioning of the seat bracket 32. This facilitates the quick alignment of the first connecting hole and the first mating hole in the Z direction and the insertion of the connector 323 for connection, thereby improving the efficiency of assembly.

[0054] In some embodiments, multiple crossbeams 22 have identical structures to reduce mold design and achieve commonality between the front and rear crossbeams 22. Each crossbeam 22 has multiple cavities spaced apart along the Z-direction. For example, each crossbeam 22 is a cuboid tubular beam, and the tube beam is provided with two reinforcing plates spaced apart along the Z-direction, thereby forming three cavities spaced apart along the Z-direction inside each crossbeam 22. The support of the reinforcing plates can ensure the structural strength of the crossbeam 22, while the cavities are more conducive to the lightweighting of the entire vehicle. The first and second mating holes opened at the top of the crossbeam 22 connect to the topmost cavity.

[0055] refer to Figure 8 As shown, another embodiment of this application also provides a car 1000, including the vehicle structure 100 as described above.

[0056] In summary, the vehicle structure 100 provided in this application embodiment has a highly integrated modular structure, which can integrate redundant structures to achieve lightweighting and cost reduction, and can also realize modular assembly, simplifying the assembly process, and providing more possibilities for improving interior space and reducing the overall vehicle height.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vehicle structure (100), characterized in that, include: The lower body frame (10), battery pack (20), and seat assembly (30); The lower vehicle frame (10) has a receiving cavity (R1); The battery pack (20) is arranged in the receiving cavity (R1) and connected to the lower body frame (10); The seat assembly (30) is connected to the top of the battery pack (20).

2. The vehicle structure (100) according to claim 1, characterized in that, During assembly, the seat assembly (30) is connected to the battery pack (20) and integrated as a single unit along the Z-direction on the lower body frame (10).

3. The vehicle structure (100) according to claim 1, characterized in that, The battery pack (20) includes a battery pack housing (21), at least one crossbeam (22), and battery cells (23); The battery pack housing (21) has a chamber (R2); The crossbeam (22) is arranged along the Y direction in the cavity (R2) and connected to the inner wall of the battery pack housing (21), dividing the cavity (R2) into multiple sub-cavities, and the battery cell (23) is arranged in the sub-cavities; The seat assembly (30) is supported on the top of the housing (21) and connected to the crossbeam (22) in the Z direction.

4. The vehicle structure (100) according to claim 3, characterized in that, The lower vehicle frame (10) includes a frame body (11) and a sealing structure (12); The frame body (11) has the receiving cavity (R1) formed thereon, and the sealing structure (12) is arranged on the frame body (11) along the circumference of the receiving cavity (R1); The battery pack housing (21) is circumferentially attached to the sealing structure (12) and connected to the frame body (11) along the Z direction.

5. A vehicle structure (100) according to claim 4, characterized in that, The sealing structure (12) includes a sealing strip or structural adhesive.

6. The vehicle structure (100) according to claim 3, characterized in that, The number of the crossbeams (22) is two, and the two crossbeams (22) are arranged at intervals along the X direction; The seat assembly (30) includes a seat body (31) and a seat bracket (32), wherein the seat body (31) is connected to the seat bracket (32) along the Z direction; The seat bracket (32) is connected to the two crossbeams (22) at both ends along the X direction along the Z direction.

7. A vehicle structure (100) according to claim 6, characterized in that, The seat bracket (32) includes a front bracket (321), a rear bracket (322), and multiple connectors (323); The front end bracket (321) has a first connecting hole along the Z direction; The rear support (322) is connected to the front support (321) and has a second connection hole along the Z direction; The top of the crossbeam (22) is provided with a first mating hole along the Z direction; The connector (323) passes through the first or second connecting hole and is connected to the first mating hole at the top of the corresponding crossbeam (22).

8. A vehicle structure (100) according to claim 7, characterized in that, The seat support (32) also includes a positioning element (324); The front end bracket (321) has a positioning hole along the Z direction, and the positioning hole and the first connecting hole are arranged at intervals along the X direction; The top of the crossbeam (22) is provided with a second mating hole along the Z direction, and the second mating hole and the first mating hole are arranged at intervals along the X direction; The positioning element (324) is installed in the second mating hole through the positioning hole.

9. A vehicle structure (100) according to claim 6, characterized in that, The crossbeam (22) has multiple cavities arranged at intervals along the Z direction inside.

10. A car (1000), characterized in that, Includes the vehicle structure (100) as described in any one of claims 1 to 9.

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