Frame assembly, vehicle chassis and vehicle

Abstract

The utility model discloses a vehicle frame assembly, a vehicle chassis and a vehicle, the vehicle frame assembly comprises a first end vehicle frame, a battery device and a second end vehicle frame, the first end vehicle frame, the battery device and the second end vehicle frame are arranged in the first direction, and the first end vehicle frame, the battery device and the second end vehicle frame are arranged in the first direction. The first end frame and the second end frame are arranged at the two ends of the battery device respectively, the battery device is fixedly connected with the first end frame and the second end frame, and the first direction is perpendicular to the height direction of the frame assembly. Therefore, by arranging the battery device, the battery device is constructed into the middle frame of the frame assembly, and the frame assembly is installed on the vehicle, compared with the prior art, the arrangement of the middle frame is omitted, the arrangement space of the battery device in the height direction of the vehicle can be increased, and the energy density of the battery device can be improved; therefore, the endurance mileage of the battery device can be improved, and the driving experience of the vehicle can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle frames, and more particularly to a vehicle frame assembly, a vehicle chassis, and a vehicle. Background Technology

[0002] In related technologies, a vehicle includes a frame assembly and a battery pack. The frame assembly has a central frame, and the battery pack is fixed to the central frame. The battery pack and the central frame are arranged along the height direction of the vehicle. Because the central frame occupies the height space of the vehicle, the size of the battery pack along the height direction is limited, which affects the energy density of the battery pack, thereby affecting the driving range of the battery pack and the driving experience of the vehicle. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a vehicle frame assembly that facilitates the improvement of the energy density of the battery device, thereby increasing the driving range of the battery device and thus improving the driving experience of the vehicle.

[0004] This application also proposes a chassis assembly.

[0005] This application also proposes a vehicle.

[0006] In a first aspect, embodiments of this application provide a vehicle frame assembly, including:

[0007] The first end frame, the battery device, and the second end frame are arranged along a first direction. Along the first direction, the first end frame and the second end frame are respectively located at both ends of the battery device, and the battery device is fixedly connected to both the first end frame and the second end frame. The first direction is perpendicular to the height direction of the frame assembly.

[0008] In the above technical solution, by setting up a battery device, which is constructed as the middle frame of the vehicle frame assembly and mounted on the vehicle, the arrangement of the middle frame is omitted compared with the prior art. This is beneficial to increase the arrangement space of the battery device along the height direction of the vehicle, which is beneficial to improve the energy density of the battery device, thereby increasing the driving range of the battery device, which in turn is beneficial to improving the driving experience of the vehicle. Furthermore, it is beneficial to reduce the manufacturing cost of the vehicle frame assembly and also to reduce the weight of the vehicle.

[0009] In some embodiments, the battery device is detachably connected to at least one of the first end frame and the second end frame.

[0010] In the above technical solution, the battery device can be detachably connected to both the first end frame and the second end frame. When the frame assembly is connected to the vehicle body, that is, when the frame assembly is installed on the vehicle, the battery device can be removed from the first end frame and the second end frame separately. In other words, the battery device can be removed from the vehicle separately for replacement and maintenance, thereby facilitating the replacement and maintenance of the battery device.

[0011] In some embodiments, the battery unit is located below the first end frame and the second end frame along the height direction of the frame assembly.

[0012] In the above technical solution, by placing the battery device below the first end frame and the second end frame, the risk of interference between the first end frame and the second end frame and the battery device removal along the height direction of the frame assembly is reduced when the battery device is removed. This facilitates the removal of the battery device from the frame assembly and improves the removal efficiency of the battery device. Furthermore, when the battery device is installed on the first end frame and the second end frame, the risk of interference between the first end frame and the second end frame and the battery device installation is reduced. This facilitates the installation of the battery device on the first end frame, the second end frame, and the vehicle body, thereby improving the replacement efficiency and maintenance efficiency of the battery device.

[0013] In some embodiments, the battery device includes: a housing, the housing including a side frame, the side frame having two first side beams, the two first side beams being opposite to and spaced apart along a second direction, the two first side beams being configured as sill beams of a vehicle, the first direction, the second direction and the height direction of the frame assembly being perpendicular to each other.

[0014] In the above technical solution, the sill beams of the vehicle are constructed using two first side beams. Compared with existing technologies, this eliminates the need for separate sill beams, reducing the manufacturing cost of the vehicle frame assembly and the vehicle's weight, thus promoting lightweight design. Furthermore, since separate sill beams are unnecessary, more space is available along the width of the vehicle for battery pack placement. Wider battery packs can be installed, and the increased height allows for more individual battery cells to be housed within the battery compartment, improving energy density and extending the vehicle's range. This, in turn, enhances the driving experience.

[0015] In some embodiments, along the second direction, the inner wall of at least one first side beam is recessed toward the outer side of the first side beam to form an installation space for a battery cell for mounting a battery device on the inner side of the first side beam.

[0016] In the above technical solution, by having the inner wall of at least one first side beam recessed towards the outer side of the first side beam, an installation space for installing battery cells can be formed on the inner side of the first side beam. This can increase the width space for arranging battery cells inside the housing, allowing more battery cells to be arranged inside the battery device housing, further increasing the energy density of the battery device, thereby further increasing the driving range of the battery device, further increasing the vehicle's driving range, and further improving the driving experience of the vehicle.

[0017] In some embodiments, along the second direction, the outer surface of the outer wall of the first side beam is fixed with a mounting beam for assembly with the vehicle body.

[0018] In the above technical solution, by providing an installation beam on the outer side wall of the first side beam, it is convenient for the installation beam to be assembled with the vehicle body, thus making the installation beam positioned reasonably. Moreover, compared with the first side beam being directly assembled with the vehicle body, by assembling with the vehicle body through the installation beam, the first side beam does not need to be provided with holes for assembly with the vehicle body, which is beneficial to maintaining the structural strength and rigidity of the first side beam, thereby improving the side impact resistance of the battery device.

[0019] In some embodiments, the side frame further has two second side beams, which are opposite to and spaced apart along a first direction, and the two second side beams are connected between the two first side beams.

[0020] In the above technical solution, by setting two second side beams connected between two first side beams, the shape of the side frame can be made regular, which facilitates the assembly of the battery device on the vehicle.

[0021] In some embodiments, the side frame is fixedly connected to both the first end frame and the second end frame.

[0022] In the above technical solution, the first end frame and the second end frame are fixedly connected to the side frame, which can fix the first end frame and the second end frame to the side frame. The battery device does not need to be set up separately for the first end frame and the second end frame. Compared with setting up separate beams for the first end frame and the second end frame, the structure of the battery device can be simplified, the production and manufacturing of the battery device can be facilitated, the manufacturing cost of the battery device can be reduced, the weight of the battery device can be reduced, and the lightweight design of the battery device can be further facilitated.

[0023] In some embodiments, the frame assembly further includes a component mounting portion, which is located above and fixed to the battery device along the height direction of the frame assembly.

[0024] In the above technical solution, by fixing the component mounting part to the battery device, the battery device can serve as the floor of the vehicle. The vehicle has more space to arrange the battery device along the height direction, and a taller battery device can be installed on the vehicle. Due to the increased height of the battery device, more battery cells can be arranged in the battery device's housing, further improving the energy density of the battery device. This can further improve the battery device's range, further improve the vehicle's driving range, and thus further improve the vehicle's driving experience.

[0025] In some embodiments, the component mounting section and the battery device are detachably connected.

[0026] In the above technical solution, the battery device is detachably connected to the component mounting part. When the battery device needs to be removed from the vehicle, the component mounting part and the battery device can be separated, which makes it easier to remove the battery device from the first end frame and the second end frame separately, and facilitates the individual replacement and maintenance of the battery device.

[0027] In some embodiments, the battery device includes: a housing, the housing including a top cover, and a component mounting portion fixed to the top cover.

[0028] In the above technical solution, the component mounting part is fixed to the upper cover. The upper cover has a large surface area, which helps to increase the contact area between the component mounting part and the battery device. The upper cover can reliably support the component mounting part, thereby making the position of the component mounting part more stable and reducing the risk of the component mounting part shaking. Furthermore, due to the large surface area of ​​the upper cover, more component mounting parts can be provided on the upper surface of the upper cover, thereby fixing more components to the battery device and making the position of the component mounting part more reasonable.

[0029] Secondly, embodiments of this application also provide a vehicle chassis, including the aforementioned frame assembly.

[0030] Thirdly, embodiments of this application also provide a vehicle, including the aforementioned vehicle chassis.

[0031] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is a schematic diagram of a vehicle according to an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of a vehicle frame assembly according to an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of a battery device according to an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the side frame of a battery device according to an embodiment of this application;

[0037] Figure 5 This is a schematic cross-sectional view of the first side beam of the side frame according to an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of the first end frame according to an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the second end frame according to an embodiment of this application.

[0040] Figure label:

[0041] Frame assembly 100;

[0042] First end frame 10; First torque box 11; Second torque box 12; First crossbeam 13; Second crossbeam 14; First front longitudinal beam 15; Second front longitudinal beam 16; First shock absorber tower 17; Second shock absorber tower 18; Front bumper beam 19; Third crossbeam 191;

[0043] Battery assembly 20; housing 21; side frame 211; first side beam 212; mounting space 213; mounting beam 214; second side beam 215; top cover 216; sixth crossbeam 218;

[0044] Second end frame 30; First torsion beam 31; Second torsion beam 32; Fourth crossbeam 33; Fifth crossbeam 34; Rear bumper beam 35; First energy-absorbing box 36; Second energy-absorbing box 37;

[0045] Parts mounting section 40;

[0046] Vehicle 200; Controller 201; Motor 202. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0049] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0053] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0054] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0055] In this application, "multiple" means two or more (including two).

[0056] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0057] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0058] Battery cells can be cylindrical, flat, cuboid, or other shapes, and this application embodiment is not limited to any of these. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and this application embodiment is not limited to any of these types either.

[0059] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0060] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0061] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0062] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0063] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0064] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0065] As an example, the inside of the enclosure can form a closed space that can house individual battery cells, meaning that the individual battery cells are installed within the closed space.

[0066] In some embodiments, the battery assembly is part of the vehicle chassis. For example, the battery assembly is part of the vehicle chassis frame assembly.

[0067] The battery cell is housed within the battery pack. The battery cell includes a casing, electrode assembly, and electrolyte. The casing contains the electrode assembly and electrolyte. The electrode assembly consists of an anode electrode, a cathode electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the anode and cathode electrodes. The anode electrode includes an anode current collector and an anode active material layer. The anode active material layer is coated on the surface of the anode current collector. The uncoated anode current collector protrudes beyond the coated anode current collector, serving as the anode tab. Taking a lithium-ion battery as an example, the anode current collector can be made of aluminum, and the anode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The cathode electrode includes a cathode current collector and a cathode active material layer. The cathode active material layer is coated on the surface of the cathode current collector. The uncoated cathode current collector protrudes beyond the coated cathode current collector, serving as the cathode tab. The cathode current collector can be made of copper, and the cathode active material can be carbon or silicon, etc. To ensure that a large current can be passed without melting, there are multiple anode tabs stacked together, and there are multiple cathode tabs stacked together.

[0068] The separator can be made of PP (polypropylene) or PE (polyethylene), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0069] In recent years, battery devices have developed rapidly. As the power source of vehicles, batteries play an irreplaceable and crucial role. As a core component of new energy vehicles, batteries have high requirements for driving range. Battery devices can be installed on the vehicle's chassis frame assembly. The frame assembly has a central frame, on which the battery device is fixed. The battery device and the central frame are arranged along the vehicle's height. Because the central frame occupies space within the vehicle's height, the dimensions of the battery device along the vehicle's height are limited, affecting the battery's energy density and thus its driving range, ultimately impacting the driving experience.

[0070] Based on the above considerations, and to address the issues of battery energy density and driving range, a vehicle frame assembly was designed after in-depth research. The assembly includes a first end frame, a battery unit, and a second end frame. The first end frame, battery unit, and second end frame are arranged along a first direction, with each end frame positioned at one end of the battery unit. The battery unit is fixedly connected to both the first and second end frames. The first direction is perpendicular to the height direction of the frame assembly. The battery unit is constructed as the central frame of the frame assembly, which is mounted on the vehicle. Compared to existing technologies, this design eliminates the need for a central frame, allowing for greater space for the battery unit along the vehicle's height, thus improving its energy density and driving range, ultimately enhancing the driving experience.

[0071] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 200 provided in some embodiments of this application. The vehicle 200 can be a gasoline-powered vehicle or a new energy vehicle; a new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. The battery device 20 is configured as the frame assembly 100 of the vehicle 200 chassis. The battery device 20 can be used to power the vehicle 200; for example, the battery device 20 can serve as the operating power source for the vehicle 200. The vehicle 200 may also include a controller 201 and a motor 202. The controller 201 is used to control the battery device 20 to supply power to the motor 202, for example, to meet the power needs of the vehicle 200 during starting, navigation, and driving.

[0072] In some embodiments of this application, the battery device 20 can not only serve as the operating power source for the vehicle 200, but also as the driving power source for the vehicle 200, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200.

[0073] The following is for reference. Figures 1-7 The vehicle frame assembly 100 according to an embodiment of the present application is described. The vehicle frame assembly 100 is the structure of the chassis of the vehicle 200, and the chassis of the vehicle 200 is mounted on the vehicle 200.

[0074] like Figures 2-7 As shown, the frame assembly 100 according to an embodiment of this application includes:

[0075] The first end frame 10, the battery device 20, and the second end frame 30 are arranged along a first direction. Along the first direction, the first end frame 10 and the second end frame 30 are respectively located at both ends of the battery device 20, and the battery device 20 is fixedly connected to both the first end frame 10 and the second end frame 30. The first direction is perpendicular to the height direction of the frame assembly 100.

[0076] The frame assembly 100 includes a first end frame 10, a battery unit 20, and a second end frame 30. The first end frame 10, battery unit 20, and second end frame 30 can all be connected to the body of the vehicle 200. When the frame assembly 100 is mounted on the vehicle 200, its first direction is parallel to the driving direction of the vehicle 200, which can also be understood as parallel to the longitudinal direction of the vehicle 200. The height direction of the frame assembly 100 is parallel to the height direction of the vehicle 200. The first end frame 10 is the front frame of the vehicle 200, the battery unit 20 is the middle frame of the vehicle 200, and the second end frame 30 is the rear floor frame of the vehicle 200. Figure 2 As shown, the first direction is Figure 2 The X direction in the equation.

[0077] The first end frame 10, the battery device 20, and the second end frame 30 are arranged along a first direction. The first end frame 10 and the second end frame 30 are arranged opposite each other and spaced apart along the first direction. The first end frame 10 and the second end frame 30 are respectively located at the end positions of the battery device 20. The battery device 20 is fixedly connected to both the first end frame 10 and the second end frame 30. The battery device 20 can be fixedly connected to the first end frame 10 and the second end frame 30 by bolts or by snap-fit. However, this application is not limited to this. This application can also be fixedly connected to the first end frame 10 and the second end frame 30 by other connection methods, as long as the battery device 20 is fixedly connected to both the first end frame 10 and the second end frame 30.

[0078] In this application, the frame assembly 100 includes a battery device 20, which is configured as the central frame of the frame assembly 100. The frame assembly 100 of this application does not require a separate central frame design. Compared with the prior art, the frame assembly 100 omits the arrangement of the central frame, which helps to reduce the manufacturing cost of the frame assembly 100 and the weight of the vehicle 200, thereby facilitating the lightweight design of the vehicle 200. Furthermore, by omitting the arrangement of the central frame in the frame assembly 100, the vehicle 200 has more space along its height, allowing for the installation of a larger battery device 20. Due to the increased height of the battery device 20, more battery cells can be arranged within the housing 21 of the battery device 20, which helps to increase the energy density of the battery device 20, thereby increasing the driving range of the battery device 200 and ultimately improving the driving experience of the vehicle 200.

[0079] In the above technical solution, by setting up a battery device 20, which is constructed as the middle frame of the frame assembly 100 and mounted on the vehicle 200, the arrangement of the middle frame is omitted compared with the prior art. This is beneficial to increase the arrangement space of the battery device 20 along the height direction of the vehicle 200, which is beneficial to improve the energy density of the battery device 20, thereby improving the driving range of the battery device 20, which in turn is beneficial to improving the driving experience of the vehicle 200. Furthermore, it is beneficial to reduce the manufacturing cost of the frame assembly 100 and the weight of the vehicle 200.

[0080] According to some embodiments of this application, the battery device 20 is detachably connected to at least one of the first end frame 10 and the second end frame 30.

[0081] Among them, such as Figure 2 As shown, as an example, the battery device 20 is detachably connected to the first end frame 10. As another example, the battery device 20 is detachably connected to the second end frame 30. As yet another example, the battery device 20 is detachably connected to both the first end frame 10 and the second end frame 30. This application describes the battery device 20 with the example of detachable connections to both the first end frame 10 and the second end frame 30. The battery device 20 can be fixedly connected to the first end frame 10 and the second end frame 30 by bolts, or it can be fixedly connected to the first end frame 10 and the second end frame 30 by snap-fit.

[0082] In the above technical solution, the battery device 20 can be detachably connected to both the first end frame 10 and the second end frame 30. When the frame assembly 100 is connected to the body of the vehicle 200, that is, when the frame assembly 100 is installed on the vehicle 200, the battery device 20 can be removed from the first end frame 10 and the second end frame 30 separately. In other words, the battery device 20 can be removed from the vehicle 200 separately for replacement and maintenance, thereby facilitating the replacement and maintenance of the battery device 20.

[0083] According to some embodiments of this application, such as Figure 2 As shown, along the height direction of the frame assembly 100, the battery device 20 is located below the first end frame 10 and the second end frame 30.

[0084] Along the height direction of the frame assembly 100, i.e., along the height direction of the vehicle 200, the battery device 20 is mounted below the first end frame 10 and the second end frame 30, and both the first end frame 10 and the second end frame 30 can abut against the upper surface of the battery device 20.

[0085] In the above technical solution, by positioning the battery device 20 below the first end frame 10 and the second end frame 30, the risk of interference between the first end frame 10 and the second end frame 30 and the battery device 20 in the height direction of the frame assembly 100 is reduced when the battery device 20 is removed. This facilitates the removal of the battery device 20 from the frame assembly 100 and improves the removal efficiency of the battery device 20. Furthermore, when the battery device 20 is installed on the first end frame 10 and the second end frame 30, the risk of interference between the first end frame 10 and the second end frame 30 and the battery device 20 is reduced, facilitating the installation of the battery device 20 on the first end frame 10, the second end frame 30, and the vehicle body. This improves the replacement efficiency and maintenance efficiency of the battery device 20.

[0086] According to some embodiments of this application, such as Figures 2-4 As shown, the battery device 20 includes: a housing 21, the housing 21 including a side frame 211, the side frame 211 having two first side beams 212, the two first side beams 212 being opposite to each other and spaced apart along a second direction, the two first side beams 212 being configured as sill beams of the vehicle 200, the first direction, the second direction and the height direction of the frame assembly 100 being perpendicular to each other.

[0087] The battery device 20 may include a housing 21, which includes a side frame 211. The side frame 211 is annular and includes multiple side beams arranged circumferentially around the battery device 20. Any two adjacent side beams are fixedly connected, sealed, or welded together. For example, any two adjacent side beams can be welded together using aluminum arc welding. Furthermore, the sealing surface of the side frame 211 can be planarized through machining and grinding. This can be understood as making the sealing surface of the side frame 211 smooth through machining and grinding, which is beneficial for the sealing between the side frame 211 and the mating parts.

[0088] The multiple side beams include: two first side beams 212, which are arranged opposite to each other and spaced apart along a second direction, such as... Figure 2 As shown, the second direction is Figure 2 The Y direction is parallel to the width direction of the vehicle 200. The two first side beams 212 can extend along the first direction and can be parallel. The spacing between the two first side beams 212 along the second direction can be reasonably selected according to the width of the vehicle 200. The two first side beams 212 are constructed as the sill beams of the vehicle 200.

[0089] In the above technical solution, the two first side beams 212 are used as the sill beams of the vehicle 200. Compared with the prior art, the sill beam arrangement of the vehicle 200 is omitted, and the vehicle 200 does not need to be equipped with a separate sill beam. This is more conducive to reducing the manufacturing cost of the frame assembly 100 and the weight of the vehicle 200, thus making the lightweight design of the vehicle 200 more advantageous. Furthermore, since the vehicle 200 does not need to be equipped with a separate sill beam, there is more space along the width direction of the vehicle 200 to arrange the battery device 20. A wider battery device 20 can be installed on the vehicle 200. Due to the increased height of the battery device 20, more battery cells can be arranged in the housing 21 of the battery device 20, which is more conducive to improving the energy density of the battery device 20. This is more conducive to improving the driving range of the battery device 200 and thus improving the driving experience of the vehicle 200.

[0090] According to some embodiments of this application, such as Figure 4 and Figure 5 As shown, along the second direction, the inner wall of at least one first side beam 212 is recessed toward the outer side of the first side beam 212 to form an installation space 213 for mounting the battery cell of the battery device 20 on the inner side of the first side beam 212.

[0091] In this second direction, the inner side of the first side beam 212 refers to the side of the first side beam 212 closest to the middle of the battery device 20, and the outer side of the first side beam 212 refers to the side of the first side beam 212 away from the middle of the battery device 20. As an example, the inner wall of one of the two first side beams 212 is recessed towards the outer side of the first side beam 212, and an installation space 213 is formed on the side of the first side beam 212 closest to the middle of the battery device 20. The installation space 213 communicates with the enclosed space inside the housing 21, and the installation space 213 can accommodate the battery cells of the battery device 20. As another example, the inner walls of both first side beams 212 are recessed towards the outer side of the first side beam 212, and an installation space 213 is formed on the side of the first side beam 212 closest to the middle of the battery device 20. The installation space 213 communicates with the enclosed space inside the housing 21, and the installation space 213 can accommodate the battery cells of the battery device 20.

[0092] In the above technical solution, by having the inner wall of at least one first side beam 212 recessed toward the outer side of the first side beam 212, an installation space 213 for installing battery cells can be formed on the inner side of the first side beam 212. This can increase the width space for arranging battery cells inside the housing 21, allowing more battery cells to be arranged inside the housing 21 of the battery device 20, further increasing the energy density of the battery device 20, thereby further increasing the driving range of the battery device 20, further increasing the driving range of the vehicle 200, and further improving the driving experience of the vehicle 200.

[0093] According to some embodiments of this application, such as Figure 2 and Figure 3 As shown, along the second direction, an installation beam 214 for assembling with the vehicle body is fixed on the outer surface of the outer wall of the first side beam 212.

[0094] The outer surface of the outer wall of the first side beam 212 is fixedly provided with a mounting beam 214. The mounting beam 214 can be welded to the first side beam 212, or it can be integrally formed with the first side beam 212. The mounting beam 214 can also be fixedly installed to the first side beam 212 by bolts. Both first side beams 212 are fixedly provided with mounting beams 214. The mounting beam 214 can extend along a first direction. The mounting beam 214 is assembled with the vehicle body. The mounting beam 214 is detachably connected to the vehicle body. The mounting beam 214 can be fixedly connected to the vehicle body by bolts, or it can be snapped onto the vehicle body.

[0095] In the above technical solution, by providing an installation beam 214 on the outer side wall of the first side beam 212, it is convenient for the installation beam 214 to be assembled with the vehicle body, thus making the installation beam 214 reasonably positioned. Moreover, compared with the first side beam 212 being directly assembled with the vehicle body, by assembling the first side beam 212 with the vehicle body through the installation beam 214, the first side beam 212 does not need to be provided with holes for assembly with the vehicle body, which is beneficial to maintaining the structural strength and rigidity of the first side beam 212, thereby improving the side impact resistance of the battery device 20.

[0096] According to some embodiments of this application, such as Figure 2 and Figure 3 As shown, the side frame 211 also has two second side beams 215, which are opposite to each other and spaced apart along the first direction, and the two second side beams 215 are connected between the two first side beams 212.

[0097] The side frame 211 may further include two second side beams 215, which are arranged opposite each other along a first direction and spaced apart along the first direction. The two second side beams 215 may extend along a second direction and may be arranged in parallel. Each second side beam 215 is fixedly connected at both ends to two first side beams 212.

[0098] In the above technical solution, by setting two second side beams 215, which are connected between two first side beams 212, the shape of the side frame 211 can be regular, which makes it easier for the battery device 20 to be assembled on the vehicle 200.

[0099] According to some embodiments of this application, such as Figure 2 As shown, the side frame 211 is fixedly connected to both the first end frame 10 and the second end frame 30.

[0100] When the first end frame 10 is connected to the battery device 20, the side frame 211 of the battery device 20 is fitted into the first end frame 10. When the second end frame 30 is connected to the battery device 20, the side frame 211 of the battery device 20 is fitted into the first end frame 10. The side frame 211 of the battery device 20 provides mounting positions for the first end frame 10 and the second end frame 30.

[0101] In the above technical solution, the first end frame 10 and the second end frame 30 are fixedly connected to the side frame 211, which can fix the first end frame 10 and the second end frame 30 to the side frame 211. The battery device 20 does not need to be provided with a separate beam for mounting the first end frame 10 and the second end frame 30. Compared with the separate provision of a beam for mounting the first end frame 10 and the second end frame 30, the structure of the battery device 20 can be simplified, the production and manufacturing of the battery device 20 can be facilitated, the manufacturing cost of the battery device 20 can be reduced, the weight of the battery device 20 can be reduced, and the lightweight design of the battery device 20 is more conducive to the design of the battery device 20.

[0102] According to some embodiments of this application, such as Figure 2 and Figure 3 As shown, the frame assembly 100 also includes a component mounting section 40, which is located above and fixed to the battery device 20 along the height direction of the frame assembly 100.

[0103] The vehicle frame assembly 100 may further include a component mounting portion 40. Along the height direction of the vehicle frame assembly 100, the component mounting portion 40 is positioned above the battery device 20. The lower surface of the component mounting portion 40 can fit against the upper surface of the battery device 20. The battery device 20 can support the component mounting portion 40. The component mounting portion 40 can be fixed to the battery device 20 by bolts or snap-fitted to the battery device 20, thereby fixing the component mounting portion 40 to the battery device 20. The component mounting portion 40 can provide mounting positions for components within the vehicle 200, and these components are mounted on the component mounting portion 40. As an example, the component mounting portion 40 may include a seat mounting beam 214, on which the seat of the vehicle 200 is mounted. The component mounting portion 40 may also be the front center floor of the vehicle 200. However, this application is not limited to these; the component mounting portion 40 may also be used to mount other components within the vehicle 200 besides the seat, and this is not specifically limited here.

[0104] In the above technical solution, by fixing the component mounting part 40 to the battery device 20, the battery device 20 can serve as the floor of the vehicle 200. The vehicle 200 has more space to arrange the battery device 20 along its height direction, and a taller battery device 20 can be installed on the vehicle 200. Due to the increased height of the battery device 20, more battery cells can be arranged in the housing 21 of the battery device 20, further improving the energy density of the battery device 20, thereby further improving the driving range of the battery device 20, further improving the driving range of the vehicle 200, and further improving the driving experience of the vehicle 200.

[0105] According to some embodiments of this application, such as Figure 2 As shown, the component mounting part 40 and the battery device 20 are detachably connected.

[0106] As one example, the component mounting portion 40 can be fixed to the battery device 20 by bolts, thereby achieving a detachable connection between the component mounting portion 40 and the battery device 20. As another example, the component mounting portion 40 can also be snapped onto the battery device 20, thereby achieving a detachable connection between the component mounting portion 40 and the battery device 20. However, this application is not limited to this; the component mounting portion 40 can also be detachably connected to the battery device 20 in other ways, as long as the component mounting portion 40 and the battery device 20 are detachably connected.

[0107] In the above technical solution, the battery device 20 is detachably connected to the component mounting part 40. When it is necessary to remove the battery device 20 from the vehicle 200, the component mounting part 40 and the battery device 20 are disassembled, which makes it easier for the battery device 20 to be removed from the first end frame 10 and the second end frame 30 separately, and facilitates the individual replacement and maintenance of the battery device 20.

[0108] According to some embodiments of this application, such as Figure 2 and Figure 3 As shown, the battery device 20 includes: a housing 21, the housing 21 including a top cover 216, and a component mounting part 40 fixedly mounted on the top cover 216.

[0109] The housing 21 may further include a lower cover, an upper cover 216 disposed above the side frame 211, the upper cover 216 covering the upper open end of the side frame 211 and detachably connected to the side frame 211, and a lower cover disposed below the side frame 211, the lower cover covering the lower open end of the side frame 211 and detachably connected to the side frame 211. The upper cover 216, the side frame 211, and the lower cover together define a closed space, within which a battery cell is installed. The component mounting part 40 is fitted to the upper surface of the upper cover 216.

[0110] In the above technical solution, the component mounting part 40 is fixed to the upper cover 216. The upper cover 216 has a large surface area, which helps to increase the contact area between the component mounting part 40 and the battery device 20. The upper cover 216 can reliably support the component mounting part 40, thereby making the position of the component mounting part 40 more stable and reducing the risk of the component mounting part 40 shaking. Furthermore, due to the large surface area of ​​the upper cover 216, more component mounting parts 40 can be provided on the upper surface of the upper cover 216, thereby fixing more components to the battery device 20, and making the position of the component mounting part 40 more reasonable.

[0111] According to some embodiments of this application, such as Figure 2 and Figure 6As shown, the first end frame 10 may include: a first torque box 11, a second torque box 12, a first crossbeam 13, and a second crossbeam 14. The first torque box 11 and the second torque box 12 are arranged opposite to each other and spaced apart along a second direction. Both the first torque box 11 and the second torque box 12 are detachably connected to the battery device 20. The first crossbeam 13 and the second crossbeam 14 both extend along the second direction. The two ends of the first crossbeam 13 are fixedly connected to the first torque box 11 and the second torque box 12, respectively. The two ends of the second crossbeam 14 are fixedly connected to the first torque box 11 and the second torque box 12, respectively. The first crossbeam 13 is located above the second crossbeam 14, and the first crossbeam 13 and the second crossbeam 14 are fixedly connected. The first crossbeam 13 and the second crossbeam 14 can be separate parts, or they can be integrally formed parts. This application uses the example of the first crossbeam 13 and the second crossbeam 14 being separate parts for illustration.

[0112] Furthermore, the first end frame 10 may also include: a first front longitudinal beam 15, a second front longitudinal beam 16, a first shock absorber tower 17, a second shock absorber tower 18, a front anti-collision beam 19, and a third crossbeam 191. Along the first direction, the first front longitudinal beam 15 and the second front longitudinal beam 16 are both located on the side of the first end frame 10 away from the second end frame 30. The first front longitudinal beam 15 and the second front longitudinal beam 16 both extend along the first direction. The first front longitudinal beam 15 and the second front longitudinal beam 16 are arranged opposite to each other and spaced apart along the second direction. The first front longitudinal beam 15 is fixedly connected to the first torsion box 11, and the second front longitudinal beam 16 is fixedly connected to the second torsion box 12. The first shock absorber tower 17 is fixedly mounted on the first front longitudinal beam 15, and the second shock absorber tower 18 is fixedly mounted on the second front longitudinal beam 16. The front bumper beam 19 is located on the side of the first front longitudinal beam 15 away from the second end frame 30. The front bumper beam 19 is fixedly connected to both the first front longitudinal beam 15 and the second front longitudinal beam 16, and extends along the second direction. The third crossbeam 191 extends along the second direction and is connected between the first shock absorber tower 17 and the second shock absorber tower 18.

[0113] A sealing structure can be provided between any two connected components among the first torque box 11, second torque box 12, first crossbeam 13, second crossbeam 14, first front longitudinal beam 15, second front longitudinal beam 16, first shock absorber tower 17, second shock absorber tower 18, front anti-collision beam 19, and third crossbeam 191. The sealing structure can be a sealant. After the first end frame 10 is assembled, the first end frame 10 is baked. The sealing structure can seal the gap between two adjacent components and improve the sealing performance of the first end frame 10.

[0114] According to some embodiments of this application, such as Figure 2 and Figure 7As shown, the second end frame 30 may include: a first torsion beam 31, a second torsion beam 32, a fourth crossbeam 33, and a fifth crossbeam 34. The first torsion beam 31 and the second torsion beam 32 both extend along a first direction. The first torsion beam 31 and the second torsion beam 32 are opposite to each other and spaced apart along a second direction. The fourth crossbeam 33 and the fifth crossbeam 34 both extend along the second direction. The fourth crossbeam 33 and the fifth crossbeam 34 are arranged spaced apart along the first direction. The fourth crossbeam 33 and the fifth crossbeam 34 are both connected between the first torsion beam 31 and the second torsion beam 32. Along the first direction, the fourth crossbeam 33 is located on the side of the fifth crossbeam 34 closer to the first end frame 10. Along the first direction, from the fifth crossbeam 34 to the fourth crossbeam 33, the spacing between the first torsion beam 31 and the second torsion beam 32 can gradually increase.

[0115] Furthermore, the second end frame 30 may include: a rear bumper beam 35, a first energy-absorbing box 36 and a second energy-absorbing box 37, the first energy-absorbing box 36 and the second energy-absorbing box 37 being opposite to each other and spaced apart along a second direction, the first energy-absorbing box 36 and the second energy-absorbing box 37 extending along a first direction, one end of the first energy-absorbing box 36 being fixedly connected to a first torsion beam 31, one end of the second energy-absorbing box 37 being fixedly connected to a second torsion beam 32, the other end of the first energy-absorbing box 36 being fixedly connected to the rear bumper beam 35, the other end of the second energy-absorbing box 37 being fixedly connected to the rear bumper beam 35, and the rear bumper beam 35 extending along a second direction.

[0116] A sealing structure can be provided between any two components connected to the first torsion beam 31, the second torsion beam 32, the fourth crossbeam 33, the fifth crossbeam 34, the rear anti-collision beam 35, the first energy-absorbing box 36, and the second energy-absorbing box 37. The sealing structure can be a sealant. After the second end frame 30 is assembled, the second end frame 30 is baked. The sealing structure can seal the gap between two adjacent components and improve the sealing performance of the second end frame 30.

[0117] According to some embodiments of this application, such as Figure 3 and Figure 4As shown, the battery device 20 may further include a sixth crossbeam 218, which is disposed within the housing 21. The sixth crossbeam 218 may be located between two first side beams 212, extending along a second direction. Both ends of the sixth crossbeam 218 are fixedly connected to the two first side beams 212, respectively. The sixth crossbeam 218 can support the two first side beams 212, which helps to improve the structural strength of the side frame 211, thereby improving the structural strength of the housing 21 and ultimately enhancing the side impact resistance of the battery device 20. It should be noted that at least two adjacent components among the multiple parts constituting the housing 21 may be provided with a sealing structure, which can be a sealant, improving the sealing performance of the housing 21. When the battery device 20 is assembled with the first end frame 10 and the second end frame 30, a sealing structure is provided on the mounting surface of the battery device 20, which helps to improve the sealing performance of the frame assembly 100. When the battery device 20 is assembled with the vehicle body 200, a sealing structure is provided on the assembly surface of the battery device 20, which helps to improve the sealing between the frame assembly 100 and the vehicle body, thereby improving the sealing of the vehicle 200.

[0118] The frame assembly 100 of this application can be a skateboard chassis frame. The first end frame 10, battery unit 20, and second end frame 30 of the frame assembly 100 can be connected and assembled by bolts and sealing strips. The assembly of the first end frame 10, battery unit 20, and second end frame 30 is produced in the chassis workshop, including processes such as bolting, FDS (flow drill screws), structural adhesive, spot welding sealant, high-temperature PVC, core-pulling riveting, aluminum arc welding, aluminum stud welding, aluminum grinding and sealing strip bonding, and airtightness testing. The battery unit 20 is produced in the battery workshop.

[0119] The vehicle 200 chassis according to an embodiment of this application includes the frame assembly 100 of the above embodiment. The battery device 20 is constructed as the middle frame of the frame assembly 100. The vehicle 200 chassis is mounted on the vehicle 200. Compared with the prior art, the arrangement of the middle frame is omitted, which is beneficial to increasing the arrangement space of the battery device 20 along the height direction of the vehicle 200, which is beneficial to improving the energy density of the battery device 20, thereby improving the driving range of the battery device 20, and thus improving the driving experience of the vehicle 200.

[0120] The vehicle 200 according to an embodiment of this application includes the chassis of the vehicle 200 described above. The battery device 20 is configured as the middle frame of the frame assembly 100. The vehicle 200 chassis is mounted on the vehicle 200. Compared with the prior art, the arrangement of the middle frame is omitted, which is beneficial to increasing the arrangement space of the battery device 20 along the height direction of the vehicle 200, which is beneficial to improving the energy density of the battery device 20, thereby improving the driving range of the battery device 20, and thus improving the driving experience of the vehicle 200.

[0121] According to some embodiments of this application, see Figures 2-7 As shown, this application provides a vehicle frame assembly 100, which includes a first end frame 10, a battery device 20, a second end frame 30, and a component mounting section 40. The first end frame 10, the battery device 20, and the second end frame 30 are arranged along a first direction. Along the first direction, the first end frame 10 and the second end frame 30 are respectively located at both ends of the battery device 20. Along the height direction of the vehicle frame assembly 100, the battery device 20 is located below the first end frame 10 and the second end frame 30, and the battery device 20 is detachably connected to both the first end frame 10 and the second end frame 30. The battery device 20 includes a housing 21 and battery cells. The battery cells are disposed inside the housing 21. The housing 21 includes a side frame 211, and the side frame 211 has two first side beams 212. The two first side beams 212 are opposite to each other and spaced apart along a second direction, and the two first side beams 212 are configured as sill beams of the vehicle 200. Along the second direction, the inner wall of at least one first side beam 212 is recessed toward the outer side of the first side beam 212 to form a mounting space 213 for mounting the battery cells of the battery assembly 20 on the inner side of the first side beam 212. A mounting beam 214 for assembling with the vehicle body is fixed to the outer surface of the outer wall of the first side beam 212. Along the height direction of the frame assembly 100, a component mounting portion 40 is located above the battery assembly 20 and fixed to the upper cover 216 of the battery assembly 20. The component mounting portion 40 and the upper cover 216 of the battery assembly 20 are detachably connected.

[0122] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0123] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A frame assembly characterized by, The application relates to a vehicle frame assembly. The vehicle frame assembly comprises a first end frame, a battery device and a second end frame, which are arranged along a first direction, and the first end frame and the second end frame are respectively arranged at two ends of the battery device along the first direction, and the battery device is fixedly connected with the first end frame and the second end frame. The battery device comprises a box body, and the box body comprises a side frame, the side frame has two first side beams which are opposite and spaced apart along a second direction, and the two first side beams are configured as rocker beams of a vehicle.

2. The frame assembly of claim 1, wherein, The battery device is detachably connected with at least one of the first end frame and the second end frame.

3. The frame assembly of claim 1, wherein, The battery device is located below the first end frame and the second end frame along a height direction of the vehicle frame assembly.

4. The frame assembly of claim 1, wherein, An inner side wall of at least one of the first side beams is recessed towards an outer side of the first side beam along the second direction, so as to form a mounting space for mounting battery cells of the battery device on the inner side of the first side beam.

5. The frame assembly of claim 1, wherein, An outer surface of an outer side wall of the first side beam is fixedly provided with a mounting beam for cooperating with a vehicle body.

6. The frame assembly of claim 1, wherein, The side frame further has two second side beams which are opposite and spaced apart along the first direction, and the two second side beams are connected between the two first side beams.

7. The frame assembly of claim 1, wherein, The side frame is fixedly connected with the first end frame and the second end frame.

8. The frame assembly of any one of claims 1-7, wherein, The application further relates to a vehicle chassis. The vehicle chassis comprises the vehicle frame assembly.

9. The frame assembly of claim 8, wherein, The vehicle chassis comprises the vehicle frame assembly.

10. The frame assembly of claim 8, wherein, ​ 11. A vehicle chassis, characterized by ​ 12. A vehicle characterized by comprising: ​

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