Automobile frame and vehicle

Abstract

The application provides an automobile frame and a vehicle. The automobile frame comprises a battery pack mounting side beam and a rear longitudinal beam. The battery pack mounting side beam is arranged along the longitudinal direction of the automobile and has a first end towards the front of the automobile and a second end towards the rear of the automobile. A plurality of battery pack mounting supports are arranged on the battery pack mounting side beam along the direction from the first end to the second end. The rear longitudinal beam is connected to the second end of the battery pack mounting side beam. The rear longitudinal beam is provided with a rear suspension mounting support. The rear suspension mounting support comprises a battery pack mounting portion. The battery pack mounting portion and the battery pack mounting support are both used for mounting the battery pack to the automobile frame. According to the application, the battery pack mounting portion is arranged on the rear suspension mounting support. In other words, the battery pack mounting support at the rear suspension mounting position is integrated with the rear suspension mounting support. Therefore, the structure of the automobile frame is simplified. Moreover, the battery pack can also strengthen the rigidity of the rear suspension mounting supports on the left and right sides of the automobile in the transverse direction of the automobile.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, specifically to an automobile frame and vehicle. Background Technology

[0002] Electric vehicles are vehicles powered by an onboard power source, using an electric motor to drive the wheels. Electric vehicles typically have a battery pack mounted on the underside of the vehicle. The chassis beneath the floor requires multiple battery pack mounting brackets, resulting in a complex chassis structure. Summary of the Invention

[0003] This application provides an automobile frame and vehicle to solve the technical problem of complex frame structure in the prior art.

[0004] To address the above problems, this application provides an automobile frame, comprising:

[0005] A battery pack mounting side beam is arranged along the longitudinal direction of the vehicle, having a first end facing the front of the vehicle and a second end facing the rear of the vehicle. Along the direction from the first end to the second end, a plurality of battery pack mounting brackets are provided on the battery pack mounting side beam.

[0006] The rear longitudinal beam is connected to the second end of the battery pack mounting side beam. The rear longitudinal beam is provided with a rear suspension mounting bracket. The rear suspension mounting bracket includes a battery pack mounting part. Both the battery pack mounting part and the battery pack mounting bracket are used to mount the battery pack to the vehicle frame.

[0007] Among them, the battery pack mounting bracket and the battery pack mounting part, the battery pack that is mounted only through the battery pack mounting bracket is the first battery pack, and the battery pack that is mounted through both the battery pack mounting bracket and the battery pack mounting part is the second battery pack. In the longitudinal direction of the vehicle, the length of the first battery pack is less than the length of the second battery pack.

[0008] When the first battery pack is mounted on the vehicle frame, the vehicle frame further includes:

[0009] A connector for connecting the battery pack mounting portion on the first and second sides of the vehicle frame.

[0010] The vehicle frame also includes:

[0011] A door sill beam is provided on the side of the battery pack mounting beam facing outwards in the lateral direction of the vehicle.

[0012] The rear extension of the door sill is connected to the end of the door sill beam facing the rear of the vehicle.

[0013] The end of the battery pack mounting bracket facing the sill beam is also connected to the sill beam.

[0014] The rear suspension mounting bracket further includes a bracket mounting portion, a first bending portion, and a second bending portion. The bracket mounting portion is disposed on the rear longitudinal beam. In the lateral direction of the vehicle, the first bending portion is connected to the side of the bracket mounting portion facing inward, and the second bending portion is connected to the side of the bracket mounting portion facing outward. The first bending portion and the second bending portion extend towards the side of the bracket mounting portion away from the rear longitudinal beam. The battery pack mounting portion is connected to the end of the first bending portion away from the bracket mounting portion. The first bending portion and the second bending portion are used to mount the rear suspension.

[0015] Wherein, when the vehicle frame includes a rear door sill extension, the second bend is located on the side of the rear door sill extension facing the rear longitudinal beam.

[0016] The vehicle frame also includes:

[0017] A support member is disposed on the side of the first bend that is away from the second bend, and is used to support the first bend.

[0018] The support member includes a connecting part and a first support part. The connecting part is disposed on the rear longitudinal beam, and the first support part is connected to the side of the connecting part facing the rear suspension mounting bracket. The first support part is provided with a recessed platform, and the side of the first support part away from the recessed platform is fitted to the first bending part.

[0019] The support member further includes a second support portion, which is connected to the side of the first support portion away from the connecting portion. The second support portion is located on the side of the battery pack mounting portion facing the rear longitudinal beam and is used to support the battery pack mounting portion.

[0020] This application also provides a vehicle including a battery pack, a rear suspension, and any of the vehicle frames described above, wherein the battery pack is mounted between battery pack mounting side beams on a first and second side of the vehicle frame, and the rear suspension is mounted on a rear suspension mounting bracket of the vehicle frame.

[0021] The beneficial effects of the embodiments of this application are as follows: This application provides an automobile frame, including a battery pack mounting beam and a rear longitudinal beam. The battery pack mounting beam is arranged longitudinally along the automobile, having a first end facing the front of the vehicle and a second end facing the rear of the vehicle. Along the direction from the first end to the second end, a plurality of battery pack mounting brackets are provided on the battery pack mounting beam. The rear longitudinal beam is connected to the second end of the battery pack mounting beam, and the rear longitudinal beam is provided with a rear suspension mounting bracket. The rear suspension mounting bracket includes a battery pack mounting part, and both the battery pack mounting part and the battery pack mounting bracket are used to mount the battery pack to the automobile frame. By providing a battery pack mounting part on the rear suspension mounting bracket, this application is equivalent to integrating the battery pack mounting bracket at the rear suspension mounting position with the rear suspension mounting bracket, which simplifies the automobile frame structure compared to setting one battery pack mounting bracket and one rear suspension mounting bracket at one location. In addition, when the battery pack is installed between the rear suspension mounting brackets on the left and right sides, the lateral stiffness of the battery pack can be used to strengthen the lateral stiffness of the rear suspension mounting brackets, thus effectively ensuring the lateral installation stiffness of the rear suspension mounting brackets while installing the battery pack. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a partial structural schematic diagram of the automobile frame provided in this application from a first-view perspective;

[0024] Figure 2 This is a partial structural schematic diagram of the automobile frame provided in this application from a second-view perspective;

[0025] Figure 3 yes Figure 2 Enlarged view of point C in the middle;

[0026] Figure 4 yes Figure 1 Enlarged view of point A in the middle;

[0027] Figure 5 yes Figure 1 Enlarged view of point B in the middle;

[0028] Figure 6 yes Figure 2 Enlarged view at point D;

[0029] Figure 7 This is a partial structural diagram of the automobile frame from a third-person perspective provided in this application;

[0030] Figure 8 yes Figure 7 A cross-sectional view along the EE direction;

[0031] Figure 9 yes Figure 7 A cross-sectional view along the FF direction;

[0032] Figure 10 This is a partial structural diagram of the vehicle frame and the second battery pack provided in this application.

[0033] Figure 11 This is a partial structural diagram of the car frame and the first battery pack provided in this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction 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.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In this document, the term "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 throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] Please see Figures 1 to 2 , Figure 1 This is a partial structural schematic diagram of the automobile frame from a first-person perspective provided in this application. Figure 2 This is a partial structural schematic diagram of a vehicle frame from a second perspective provided in this application. This application provides a vehicle frame that can be applied to electric vehicles. The vehicle frame includes a battery pack mounting side beam 10 and a rear longitudinal beam 20. The battery pack mounting side beam 10 is arranged longitudinally along the vehicle. The battery pack mounting side beam 10 has a first end facing the front of the vehicle and a second end facing the rear of the vehicle. Along the direction from the first end to the second end, a plurality of battery pack mounting brackets 11 are provided on the battery pack mounting side beam 10. The rear longitudinal beam 20 is connected to the second end of the battery pack mounting side beam 10. The rear longitudinal beam 20 is provided with a rear suspension mounting bracket 21. The rear suspension mounting bracket 21 includes a battery pack mounting portion 211. Both the battery pack mounting portion 211 and the battery pack mounting bracket 11 are used to mount the battery pack to the vehicle frame.

[0040] It should be noted that, as Figure 1As shown, the longitudinal direction of the car is the X-axis. The Y-axis of the car is the lateral direction. The left side of the car is the left-hand side of the user when facing the front of the car; the right side of the car is the right-hand side of the user when facing the front of the car.

[0041] Two battery pack mounting side beams 10 are provided, located on the left and right sides of the vehicle. This application does not limit the specific shape or structure of the battery pack mounting side beams 10. The battery pack mounting side beams 10 are arranged longitudinally along the vehicle. The first end of the battery pack mounting side beam 10 can connect to the rear section of the front longitudinal beam of the vehicle frame. The second end of the battery pack mounting side beam 10 connects to the rear longitudinal beam 20. When the battery pack is mounted on the vehicle frame, the two battery pack mounting side beams 10 are located on the left and right sides of the battery pack. Battery pack mounting brackets 11 on the battery pack mounting side beams 10 are used to fix the left and right sides of the battery pack. This application does not limit the specific number of battery pack mounting brackets 11 on the battery pack mounting side beams 10. The specific number of battery pack mounting brackets 11 can be set according to the specifications of the battery pack to be installed, so that the battery pack mounting brackets 11 correspond one-to-one with the hanging points on the side of the battery pack. It should be noted that, since the rear longitudinal beam 20 is connected to the second end of the battery pack mounting side beam 10, according to the distribution of the mounting points on the side of the battery pack, in the longitudinal direction of the vehicle, the mounting points on the side of the battery pack may also be distributed between the last battery pack mounting bracket 11 and the battery pack mounting part 211 on the battery pack mounting side beam 10. In this case, a battery pack mounting bracket 11 corresponding to the mounting point can also be set on the rear longitudinal beam 20.

[0042] Please refer to the following: Figure 3 , Figure 3 yes Figure 2 Enlarged view at point C. This application does not limit the specific structure of the battery pack mounting bracket 11. For example, in some embodiments, the battery pack mounting bracket 11 includes a mounting plate with supporting bends on both sides. A welding edge is provided at the end of the supporting bends facing away from the mounting plate. The battery pack mounting bracket 11 is welded to the battery pack mounting beam 10 via the welding edge. The mounting plate of the battery pack mounting bracket 11 has battery pack fixing points. For example, the fixing points can be fastening bolts provided on the mounting plate or mounting through holes. When the fixing point is a mounting through hole, a fastening nut can be correspondingly provided in the mounting through hole.

[0043] In some embodiments, the vehicle frame further includes a sill beam 30 and a rear sill extension 31. The sill beam 30 is arranged longitudinally along the vehicle. In the transverse direction of the vehicle, the two sills are located on the side of the battery pack mounting side beam 10 facing outwards. The sill beam 30 and the battery pack mounting side beam 10 are fixedly connected by spot welding. The rear sill extension 31 is connected to the end of the two sills facing the rear of the vehicle. It should be noted that when the sill beam 30 is provided on the side of the battery pack mounting side beam 10 facing outwards, the end of the battery pack mounting bracket 11 facing the sill beam 30 is also connected to the sill beam 30. Welding edges are also provided on both sides of the end of the battery pack mounting bracket 11 facing the sill beam 30, and the battery pack mounting bracket 11 is connected to the sill beam 30 by welding. Since the rear longitudinal beam 20 is connected to the second end of the battery pack mounting side beam 10, in the lateral direction of the vehicle, the rear longitudinal beam 20 is located on the side of the sill extension 31 facing away from the outside of the vehicle. The sill beam 30 and the sill extension 31 form the outer frame of the vehicle body, while the battery pack mounting side beam 10 and the rear longitudinal beam 20 form the inner frame of the vehicle body. The sill beam 30, the sill extension 31, the battery pack mounting side beam 10, and the rear longitudinal beam 20 form an inner and outer double frame structure, effectively improving the overall rigidity of the vehicle frame. In addition, the battery pack is mainly installed on the inner frame formed by the battery pack mounting side beam 10 and the rear longitudinal beam 20, which has a large buffer space in the lateral direction of the vehicle, effectively protecting the battery pack.

[0044] Please refer to the following: Figures 4 to 9 , Figure 4 yes Figure 1 Enlarged view of point A in the middle. Figure 5 yes Figure 1 Enlarged view at point B in the middle. Figure 6 yes Figure 2 Enlarged view at point D in the middle. Figure 7 This is a partial structural diagram of the automobile frame from a third-person perspective provided in this application. Figure 8 yes Figure 7 Sectional view along the EE direction. Figure 9 yes Figure 7A cross-sectional view along the FF direction. The number of rear longitudinal beams 20 is also two. The rear longitudinal beams 20 are connected to the second end of the battery pack mounting side beam 10, forming a continuous force transmission structure. This application does not limit the specific shape and structure of the rear longitudinal beams 20. A rear suspension mounting bracket 21 is provided at the rear suspension 300 mounting position on the rear longitudinal beams 20. The rear suspension mounting bracket 21 is used to connect the rear suspension 300 to the vehicle frame. When the vehicle frame is equipped with a battery pack, the left and right rear suspension mounting brackets 21 are located on the left and right sides of the battery pack. Thus, the battery pack mounting portion 211 on the rear suspension mounting bracket 21 can jointly fix the battery pack with the battery pack mounting bracket 11. This application does not limit the specific structure of the rear suspension mounting bracket 21. For example, in some embodiments, the rear suspension mounting bracket 21 includes a bracket mounting portion 212, a first bent portion 213, a second bent portion 214, and a battery pack mounting portion 211. A bracket mounting portion 212 is disposed on the side of the rear longitudinal beam 20 facing the vehicle floor. The surface of the bracket mounting portion 212 facing the rear longitudinal beam 20 can be fitted to the rear longitudinal beam 20. The bracket mounting portion 212 can be welded to the rear longitudinal beam 20 to mount the rear suspension mounting bracket 21 on the rear longitudinal beam 20. In the transverse direction of the vehicle, a first bend 213 is connected to the side of the bracket mounting portion 212 facing inward, and a second bend 214 is connected to the side of the bracket mounting portion 212 facing outward. Both the first bend 213 and the second bend 214 extend towards the side of the bracket mounting portion 212 away from the rear longitudinal beam 20. The first bend 213 and the second bend 214 are used to mount the rear suspension 300. When installing the rear suspension 300, the connection between the rear suspension 300 and the rear suspension mounting bracket 21 is located between the first bend 213 and the second bend 214. The first bend 213 and the second bend 214 are provided with coaxial mounting holes. The connection between the rear suspension 300 and the rear suspension mounting bracket 21 is achieved by fasteners passing through the mounting holes of the first bend 213 and the second bend 214.

[0045] It should be noted that when the vehicle frame is equipped with a rear sill extension 31, the second bend 214 is located on the side of the rear sill extension 31 facing the rear longitudinal beam 20. The second bend 214 and the rear sill extension plate can be fixed by spot welding. The rear sill extension 31 also has corresponding mounting holes. When installing the rear suspension 300, fasteners are provided through the mounting holes of the first bend 213, the second bend 214, and the mounting holes on the rear sill extension 31. The rear sill extension 31 also serves to support and reinforce the second bend 214.

[0046] The battery pack mounting portion 211 of the rear suspension mounting bracket 21 is connected to the end of the first bend 213 that faces away from the bracket mounting portion 212. The battery pack mounting portion 211 can be a flanged structure extending from the end of the first bend 213 facing away from the bracket mounting portion 212 towards the side facing away from the second bend. A corresponding battery pack fixing point is provided on the battery pack mounting portion 211. For example, in some embodiments, the battery pack fixing point on the battery pack mounting portion 211 is a mounting through hole, and a mounting nut can also be provided at the mounting through hole position to provide a mounting point for the battery pack attachment point.

[0047] In some embodiments, the vehicle frame further includes a support member 22. The support member 22 is disposed on the side of the first bend 213 opposite to the second bend 214. The support member 22 supports the first bend 213 to increase its support strength in the lateral direction of the vehicle. This application does not limit the specific structure of the support member 22. For example, in some embodiments, the support member 22 includes a connecting portion 221 and a first support portion 222. The connecting portion 221 is disposed on the side of the rear longitudinal beam 20 facing the vehicle floor. The surface of the connecting portion 221 facing the vehicle floor can be fitted to the rear longitudinal beam 20. The connecting portion 221 can be welded to the rear longitudinal beam 20 to enable the support member 22 to be disposed on the rear longitudinal beam 20. The first support portion 222 is connected to the side of the connecting portion 221 facing the rear suspension mounting bracket 21. To ensure that the first support portion 222 can provide support for the first bending portion 213 in the lateral direction of the vehicle, the connecting portion 221 and the bracket support portion can be spaced a certain distance apart. The first support portion 222 is inclined towards the first bending portion 213 from the end of the connecting portion 221. A recessed platform 223 is also provided on the first support portion 222. The recessed platform 223 can be formed by stamping on the first support portion 222. The recessed platform 223 is formed on the side of the first support portion 222 away from the first bending portion 213. In this way, a corresponding protrusion is formed on the side of the first support portion 222 away from the first bending portion 213, so that the side of the first support portion 222 away from the recessed platform 223 can be fitted against the first bending portion 213. It should be noted that during the manufacturing process of the automobile frame, the support member 22 and the rear suspension mounting bracket 21 can be welded together first. For example, the areas where the first support portion 222 and the first bending portion 213 fit together can be welded and fixed together. Then, the support member 22 and the rear suspension mounting bracket 21 can be installed on the rear longitudinal beam 20. When the support member 22 and the rear suspension mounting bracket 21 are installed on the rear longitudinal beam 20, the connecting portion 221 of the support member 22 and the bracket mounting portion 212 of the rear suspension mounting bracket 21 are welded together with the rear longitudinal beam 20.

[0048] In some embodiments, the support member 22 further includes a second support portion 224. The second support portion 224 is connected to the side of the first support portion 222 facing away from the connecting portion 221. The second support portion 224 is located on the side of the battery pack mounting portion 211 facing the rear longitudinal beam 20. The second support portion 224 is used to support the battery pack mounting portion 211. This application does not limit the specific shape of the second support portion 224. For example, the second support portion 224 can be a flanged structure extending from the end of the first support portion 222 facing away from the connecting portion 221 towards the side facing away from the first bending portion 213. The second support portion 224 is located on the side of the battery pack mounting portion 211 facing the rear longitudinal beam 20. The second support portion 224 can be fitted against the side of the battery pack mounting portion 211 facing the rear longitudinal beam 20. When the battery pack fixing point on the battery pack mounting portion 211 is a mounting through hole, the second support portion 224 is provided with a corresponding mounting through hole, and a mounting nut can also be provided at the mounting through hole position on the side of the second support portion 224 facing away from the battery pack mounting portion 211.

[0049] Please refer to the following: Figures 10 to 11 , Figure 10 This is a partial structural diagram of the vehicle frame and the second battery pack 202 provided in this application. Figure 11This is a partial structural diagram of the vehicle frame and the first battery pack 201 provided in this application. It should be noted that, in this application, when the battery pack mounting part 211 and the battery pack mounting bracket 11 install the battery pack onto the vehicle frame, the battery pack mounting part 211 and the battery pack mounting bracket 11 are distributed on both sides of the battery pack, and along the direction from the front to the rear of the vehicle frame, the battery pack mounting part 211 mates with the last mounting point on the battery pack. Users with different operating conditions have different range requirements for electric vehicles. The number of cells inside a low-range battery pack is less than that inside a high-range battery pack. To reduce costs, the box size of a low-range battery pack is generally smaller than that of a high-range battery pack. Since the front of the battery pack generally has a high-voltage wire harness outlet and the bottom of the high-voltage wire harness has a wire harness protection structure, the interface at the front of the high-range and low-range battery packs is kept consistent, allowing for the sharing of the wire harness and protection structure. Therefore, when a car frame is fitted with a low-range battery pack, the front position of the low-range battery pack is the same as that of the high-range battery pack. In the longitudinal direction of the car, the last mounting point on the low-range battery pack is positioned further forward than that on the high-range battery pack. Therefore, when the low-range battery pack is installed on the car frame, its longitudinal length does not reach the position of the battery pack mounting section 211. The two sides of the low-range battery pack can be fixed using only the battery pack mounting brackets 11. The battery pack mounted using only the battery pack mounting brackets 11 and the battery pack mounting section 211 is designated as the first battery pack 201, and the battery pack mounted using both the battery pack mounting brackets 11 and the battery pack mounting section 211 is designated as the second battery pack 202. In the longitudinal direction of the car, the length of the first battery pack 201 is less than the length of the second battery pack 202.

[0050] In some embodiments, when the first battery pack 201 is mounted on a vehicle frame, the vehicle frame may further include a connector 40. The connector 40 is used to connect the battery pack mounting portions 211 on the first and second sides of the vehicle frame. It should be noted that the first side of the vehicle frame refers to one of the left and right sides of the vehicle frame, and the second side of the vehicle frame refers to the other of the left and right sides of the vehicle frame. The battery pack mounting portions 211 on the first and second sides of the vehicle frame are the battery pack mounting portions 211 on the left and right sides of the vehicle frame. When the first battery pack 201 is mounted on the vehicle frame, in the lateral direction of the vehicle, the first battery pack 201 cannot strengthen the rigidity of the left and right rear suspension mounting brackets 21. In this case, by connecting the connector 40 to the battery pack mounting portions 211 on the left and right sides of the vehicle frame, the rigidity of the left and right rear suspension mounting brackets 21 can be strengthened through the connector 40. This application does not limit the specific structure of the connector 40. For example, in some embodiments, the connector 40 can be a crossbeam arranged laterally along the vehicle, with one end connected to the left rear suspension mounting bracket 21 and the other end connected to the right rear suspension mounting bracket 21. To ensure the rigidity of the crossbeam in the lateral direction of the vehicle, the crossbeam can have a rectangular cross-section, but is not limited to this.

[0051] It is evident that the vehicle frame provided in this application can be used with both the shorter first battery pack 201 and the longer second battery pack 202. When installing the first battery pack 201, its lateral stiffness can be used to ensure the lateral stiffness requirements of the rear suspension mounting bracket 21. When installing the second battery pack 202, the lateral stiffness of the connector 40 is used to ensure the lateral stiffness requirements of the rear suspension mounting bracket 21. For vehicles with stringent range requirements, reducing the number of internal battery cells while simultaneously reducing the longitudinal dimensions of the battery pack housing can effectively lower the cost of the battery pack.

[0052] In another embodiment of this application, a vehicle is also provided. The vehicle includes a battery pack, a rear suspension 300, and a vehicle frame as described in any of the above embodiments. The battery pack is mounted between the battery pack mounting side beams 10 on the first and second sides of the vehicle frame. The rear suspension 300 is mounted on the rear suspension mounting bracket of the vehicle frame. The battery pack mounting side beams on the first and second sides of the vehicle frame are the battery pack mounting side beams on the left and right sides of the vehicle frame.

[0053] The vehicle provided in this application adopts the technical solution of any of the above-described automobile frame embodiments. Therefore, it has at least the corresponding beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0054] This application provides an automobile frame and vehicle. The automobile frame includes a battery pack mounting beam and a rear longitudinal beam 20. The battery pack mounting beam is arranged longitudinally along the vehicle and has a first end facing the front of the vehicle and a second end facing the rear of the vehicle. Along the direction from the first end to the second end, a plurality of battery pack mounting brackets 11 are provided on the battery pack mounting beam 10. The rear longitudinal beam 20 is connected to the second end of the battery pack mounting beam 10. The rear longitudinal beam 20 is provided with a rear suspension mounting bracket 21. The rear suspension mounting bracket 21 includes a battery pack mounting portion 211. Both the battery pack mounting portion 211 and the battery pack mounting bracket 11 are used to mount the battery pack to the automobile frame. By providing the battery pack mounting portion 211 on the rear suspension mounting bracket 21, this application is equivalent to integrating the battery pack mounting bracket 11 at the rear suspension mounting position with the rear suspension mounting bracket 21. Compared to providing one battery pack mounting bracket 11 and one rear suspension mounting bracket 21 at one location, this simplifies the automobile frame structure. In addition, when the battery pack is installed between the rear suspension mounting brackets 21 on the left and right sides, the lateral stiffness of the battery pack can be used to strengthen the lateral stiffness of the rear suspension mounting brackets 21, thus effectively ensuring the lateral installation stiffness of the rear suspension mounting brackets 21 while realizing the installation of the battery pack.

[0055] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A car frame, characterized in that, include: A battery pack mounting side beam is arranged along the longitudinal direction of the vehicle, having a first end facing the front of the vehicle and a second end facing the rear of the vehicle. Along the direction from the first end to the second end, a plurality of battery pack mounting brackets are provided on the battery pack mounting side beam. The rear longitudinal beam is connected to the second end of the battery pack mounting side beam. The rear longitudinal beam is provided with a rear suspension mounting bracket. The rear suspension mounting bracket is used to mount the rear suspension. The rear suspension mounting bracket includes a battery pack mounting part. Both the battery pack mounting part and the battery pack mounting bracket are used to mount the battery pack to the vehicle frame.

2. The automobile frame as described in claim 1, characterized in that, Of the battery pack mounting bracket and the battery pack mounting part, the battery pack mounted only through the battery pack mounting bracket is the first battery pack, and the battery pack mounted through both the battery pack mounting bracket and the battery pack mounting part is the second battery pack. In the longitudinal direction of the vehicle, the length of the first battery pack is less than the length of the second battery pack. When the first battery pack is mounted on the vehicle frame, the vehicle frame further includes: A connector for connecting the battery pack mounting portion on the first and second sides of the vehicle frame.

3. The automobile frame as described in claim 1, characterized in that, The vehicle frame also includes: A door sill beam is provided on the side of the battery pack mounting beam facing outwards in the lateral direction of the vehicle. The rear extension of the door sill is connected to the end of the door sill beam facing the rear of the vehicle.

4. The automobile frame as described in claim 3, characterized in that, The end of the battery pack mounting bracket facing the sill beam is also connected to the sill beam.

5. The automobile frame as described in any one of claims 1-4, characterized in that, The rear suspension mounting bracket further includes a bracket mounting portion, a first bending portion, and a second bending portion. The bracket mounting portion is disposed on the rear longitudinal beam. In the lateral direction of the vehicle, the first bending portion is connected to the side of the bracket mounting portion facing inward, and the second bending portion is connected to the side of the bracket mounting portion facing outward. The first bending portion and the second bending portion extend towards the side of the bracket mounting portion away from the rear longitudinal beam. The battery pack mounting portion is connected to the end of the first bending portion away from the bracket mounting portion. The first bending portion and the second bending portion are used to mount the rear suspension.

6. The automobile frame as described in claim 5, characterized in that, When the vehicle frame includes a rear sill extension, the second bend is located on the side of the rear sill extension facing the rear longitudinal beam.

7. The automobile frame as described in claim 5, characterized in that, The vehicle frame also includes: A support member is disposed on the side of the first bend that is away from the second bend, and is used to support the first bend.

8. The automobile frame as described in claim 7, characterized in that, The support member includes a connecting part and a first support part. The connecting part is disposed on the rear longitudinal beam. The first support part is connected to the side of the connecting part facing the rear suspension mounting bracket. The first support part is provided with a recessed platform. The side of the first support part away from the recessed platform is fitted to the first bending part.

9. The automobile frame as described in claim 8, characterized in that, The support member further includes a second support portion, which is connected to the side of the first support portion away from the connecting portion. The second support portion is located on the side of the battery pack mounting portion facing the rear longitudinal beam, and is used to support the battery pack mounting portion.

10. A vehicle, characterized in that, The vehicle includes a battery pack, a rear suspension, and a vehicle frame as described in any one of claims 1-9, wherein the battery pack is mounted between battery pack mounting side beams on a first side and a second side of the vehicle frame, and the rear suspension is mounted on a rear suspension mounting bracket of the vehicle frame.

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