Steering angle module, vehicle chassis and vehicle

Abstract

The utility model provides a steering angle module, a vehicle chassis and a vehicle. The vehicle chassis comprises a chassis with an avoiding notch. The steering angle module comprises a bearing seat which comprises a first seat body provided with a first fixing hole; the second seat body is obliquely arranged at an angle relative to the first seat body, a second fixing hole is formed in the second seat body, and the axis direction of the first fixing hole intersects with the axis direction of the second fixing hole; the wheel driving assembly is mounted on the bearing seat; when the steering angle module is installed on the bottom frame, the bearing seat is located at the receding notch, the wheel driving assembly deviates from the bottom frame, the first fixing hole is formed in the bottom frame through a first fastener, and the second fixing hole is formed in the bottom frame through a second fastener. The vehicle chassis is high in modularization integration level and high in vehicle assembling efficiency.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a steering angle module, a vehicle chassis incorporating the steering angle module, and a vehicle having the vehicle chassis. Background Technology

[0002] With the continuous advancement of automotive technology, the integration level of automotive modules is becoming increasingly higher. In related technologies, the chassis includes structures such as shock absorbers, control arms, and steering knuckles. These structures require multiple mounting points to be fixed to the vehicle body, resulting in low modular integration. Furthermore, different vehicle sizes require different chassis lengths, which alters the mounting positions of shock absorbers, control arms, and other structures on the chassis, leading to low vehicle assembly efficiency. Utility Model Content

[0003] The purpose of this application is to provide a steering angle module, a vehicle chassis, and a vehicle to improve the modular integration of the vehicle chassis and the assembly efficiency of the vehicle.

[0004] This application provides a steering angle module for a vehicle chassis, the vehicle chassis including a chassis with a clearance notch; the steering angle module includes: a support base, including: a first base body having a first fixing hole penetrating the first base body; and a second base body connected to the first base body and inclined at an angle relative to the first base body, the second base body having a second fixing hole penetrating the second base body, and the axial direction of the first fixing hole intersecting the axial direction of the second fixing hole; and a wheel drive assembly mounted on the support base; when the steering angle module is mounted on the chassis, the support base is located at the clearance notch, the wheel drive assembly is away from the chassis, the first fixing hole is mounted on the chassis by a first fastener, and the second fixing hole is mounted on the chassis by a second fastener.

[0005] In some embodiments, the first seat has a first outer surface and a first inner surface disposed opposite to each other, and the wheel drive assembly is mounted on the side where the first inner surface is located; the second seat has a second outer surface connected to the first outer surface, and the first outer surface and the second outer surface are perpendicular to each other.

[0006] In some embodiments, the second seat has a second inner surface disposed opposite to the second outer surface, and the second inner surface is connected to the first inner surface; wherein the included angle between the first inner surface and the second inner surface is an obtuse angle.

[0007] In some embodiments, the included angle between the first inner surface and the second inner surface ranges from 95° to 110°.

[0008] In some embodiments, the second seat includes a first end connected to the first seat and a second end away from the first end; along the axial direction of the second fixing hole, the length of the second seat at the first end is greater than the length of the second seat at the second end.

[0009] In some embodiments, the support seat further includes a mounting bracket disposed on the first seat body, and the wheel drive assembly is mounted on the mounting bracket; the wheel drive assembly includes a shock absorber connected to the mounting bracket, a suspension control arm connected to the shock absorber, and a brake connected to the suspension control arm. The steering angle module further includes a wheel, which is mounted on the brake.

[0010] This application also provides a vehicle chassis, including: a chassis having a clearance notch; a steering angle module as described above; and a first fastener and a second fastener connecting the chassis and the steering angle module; wherein, when the steering angle module is mounted on the chassis, the support is located at the clearance notch, the first fastener passes through the first fixing hole and the second fastener passes through the second fixing hole to lock the steering angle module onto the chassis.

[0011] In some embodiments, the base frame has a cross-shaped cross section perpendicular to its thickness direction. The base frame includes: a first mating portion extending along the length direction of the base frame, wherein the first mating portion has a first mounting hole aligned with the first fixing hole; and a second mating portion connected to the first mating portion to form the clearance notch, wherein the second mating portion has a second mounting hole aligned with the second fixing hole.

[0012] In some embodiments, the chassis is provided with a battery mounting slot, and the vehicle chassis also includes a battery module housed in the battery mounting slot, as well as a cover plate covering the chassis and the battery module.

[0013] In another aspect, this application provides a vehicle, including a body, and the vehicle further includes a vehicle chassis as described above, the body being fixedly connected to the vehicle chassis.

[0014] The steering angle module provided in some embodiments of this application integrates a wheel drive assembly, and the axial directions of the first fixing hole and the second fixing hole intersect. This allows the steering angle module to be fixedly connected to the chassis in two directions, improving the installation strength of the steering angle module on the chassis. This ensures the reliability and stability of the entire vehicle chassis under lateral and longitudinal forces. Furthermore, the steering angle module can be easily and securely installed on the chassis, facilitating its positioning and improving installation efficiency and accuracy. Therefore, in actual production, the wheel drive assembly and the carrier can be assembled into a single steering angle module, which is then fixed integrally to the vehicle chassis chassis. This high degree of module integration reduces the complexity of vehicle assembly and improves assembly efficiency. Moreover, the modular design can adapt to the size requirements of different vehicles, facilitating vehicle size evolution and modular platform design. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0016] Figure 1 This is a schematic diagram of the assembly structure of a vehicle chassis in some embodiments of this application;

[0017] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the vehicle chassis;

[0018] Figure 3 for Figure 1 The exploded structure diagram of the steering angle module in the image;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the bearing seat in the middle;

[0020] Figure 5 for Figure 3 A schematic diagram of the wheel drive assembly in the diagram;

[0021] Figure 6 for Figure 1 A structural diagram of the base frame; and

[0022] Figure 7 for Figure 1 A schematic diagram of the battery module in the diagram. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0024] The terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, all directional indicators (such as up, down, left, right, front, back, top, bottom, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0027] Unless otherwise defined, the term “approximately” as used in this application can be understood, in relation to numerical quantities or quantitative relationships, as a range of approximately ±15% of a given value.

[0028] In related technologies, the chassis includes wheel drive components (including structures such as shock absorbers, control arms, and steering knuckles). Each component of the wheel drive components needs to be mounted and secured to the vehicle body through multiple mounting points. If the number of mounting points is too small, the mounting between the components and the vehicle body may be unstable; if the number of mounting points is too large, the modular integration of the chassis is low, and the vehicle assembly efficiency is low. Furthermore, different vehicle sizes require different chassis lengths, and different chassis lengths cause changes in the mounting positions of structures such as shock absorbers and control arms on the chassis, further reducing vehicle assembly efficiency.

[0029] To address the aforementioned technical problems, some embodiments of this application provide a vehicle (not shown), which includes a body (not shown) and a vehicle chassis 100. The body is fixedly connected to the vehicle chassis 100. Figure 1 This is a schematic diagram of the assembly structure of the vehicle chassis 100 in some embodiments of this application; Figure 2 for Figure 1 An exploded view of the vehicle chassis 100. (See attached diagram.) Figure 1-2 As shown, in some embodiments, the vehicle chassis 100 generally includes a chassis 20 and a steering angle module 10 mounted on the chassis 20. The chassis 20 has a clearance notch 20a. When the steering angle module 10 is mounted on the chassis 20, the steering angle module 10 is located at the clearance notch 20a and secured by fasteners ( Figure 2 The first fastener 51 and the second fastener 52 shown are fixed to the base frame 20.

[0030] exist Figure 1-2 In the illustrated embodiment, the chassis 20 has four clearance notches 20a, and the vehicle chassis 100 includes four steering angle modules 10. Each steering angle module 10 corresponds to one clearance notch 20a; that is, one steering angle module 10 is installed in each clearance notch 20a. Of course, in other embodiments, the chassis 20 may have other numbers of clearance notches 20a, such as three or more, and the number of steering angle modules 10 is equal to the number of clearance notches 20a, thus allowing one steering angle module 10 to be installed in each clearance notch 20a.

[0031] Figure 3 for Figure 1 An exploded view of the steering angle module 10. See also... Figure 2-3 In some embodiments, the steering angle module 10 includes a support 11 and a wheel drive assembly 12 mounted on the support 11. The support 11 may be a forged bracket with high rigidity and strength, capable of supporting the entire vehicle body and chassis 100. The wheel drive assembly 12 supports the wheels 13 and drives their movement. When the steering angle module 10 is mounted on the chassis 20, the support 11 is located at the clearance notch 20a, and the wheel drive assembly 12 is positioned away from the chassis 20. In this case, the wheel drive assembly 12 and the chassis 20 are located on opposite sides of the support 11.

[0032] Figure 4 for Figure 3 A schematic diagram of the structure of the support 11. (See attached diagram.) Figure 4As shown, in some embodiments, the support 11 generally includes a first base 111 and a second base 112 connected to the first base 111. The first base 111 has a first fixing hole 111a penetrating through it. One end of the second base 112 is connected to the first base 111, and the other end is angled relative to the first base 111. The second base 112 has a second fixing hole 112a penetrating through it, and the axial direction of the first fixing hole 111a intersects the axial direction of the second fixing hole 112a. Figure 3-4 When the steering angle module 10 is installed on the base frame 20, the first fastener 51 can pass through the corresponding first fixing hole 111a, and the second fastener 52 can pass through the corresponding second fixing hole 112a. Then the first fastener 51 and the second fastener 52 are connected to the base frame 20, thereby locking the steering angle module 10 on the base frame 20, and thus realizing the fixed connection between the steering angle module 10 and the base frame 20.

[0033] In some embodiments of this application, the steering angle module 10 integrates the wheel drive assembly 12, and the axial direction of the first fixing hole 111a intersects the axial direction of the second fixing hole 112a. Therefore, the steering angle module 10 can be fixedly connected to the chassis 20 in two directions, improving the installation strength of the steering angle module 10 on the chassis 20 and ensuring the reliability and stability of the entire vehicle chassis 100 under lateral and longitudinal forces. Moreover, the steering angle module 10 can be easily and securely installed on the chassis 20, facilitating the positioning of the steering angle module 10 and improving installation efficiency and accuracy. Therefore, in actual production, the wheel drive assembly 12 and the carrier 11 can be assembled into a steering angle module 10, and then the steering angle module 10 can be fixed to the chassis 20 of the vehicle chassis 100 as a whole. Its high degree of module integration reduces the complexity of vehicle assembly and improves vehicle assembly efficiency. Furthermore, the modular design can adapt to the size requirements of different vehicles, facilitating the evolution of vehicle size and modular platform design.

[0034] In some embodiments, the axial direction of the first fixing hole 111a is... Figure 2 and Figure 4 As shown in the Y direction, the axial direction of the second fixing hole 112a is... Figure 2 and Figure 4The X direction is shown. The X and Y directions are approximately perpendicular. Correspondingly, the first fastener 51 extends along the Y direction, and the second fastener 52 extends along the X direction. Therefore, the steering angle module 10 can be fixedly connected to the chassis 20 via both the X and Y directions, improving the installation strength of the steering angle module 10 on the chassis 20 and ensuring the reliability and stability of the entire vehicle chassis 100 under lateral and longitudinal forces. Of course, in other embodiments, the axial direction of the first fixing hole 111a and the axial direction of the second fixing hole 112a can also be set along any suitable direction shown in the figure, and other angles can be formed between them.

[0035] See further Figure 3-4 The first seat 111 has a first outer surface 111b and a first inner surface 111c disposed opposite to each other. Similarly, the second seat 112 has a second outer surface 112b and a second inner surface 112c disposed opposite to each other. The first outer surface 111b is connected to the second outer surface 112b, and the first inner surface 111c is connected to the second inner surface 112c. In this embodiment, "outer surface" refers to the surface of the support seat 11 facing the base frame 20 when the steering angle module 10 is mounted on the base frame 20; while "inner surface" refers to the surface of the support seat 11 facing away from the base frame 20. Therefore, when the steering angle module 10 is mounted on the base frame 20, the first outer surface 111b and the second outer surface 112b face the base frame 20, while the first inner surface 111c and the second inner surface 112c face away from the base frame 20. The wheel drive assembly 12 is mounted on the side where the first inner surface 111c is located.

[0036] In some embodiments, the first outer surface 111b and the second outer surface 112b are perpendicular to each other. The design of the first outer surface 111b and the second outer surface 112b being perpendicular to each other facilitates the rapid positioning of the support 11 during installation, improves the installation efficiency and accuracy of the steering angle module 10, and facilitates the modular design and mass production of the steering angle module 10 and the vehicle chassis 100.

[0037] In some embodiments, the included angle between the first inner surface 111c and the second inner surface 112c is an obtuse angle. In other words, the width of the second seat 112 is different in the axial direction of the second fixing hole. For example, the second seat 112 may include a first end (unlabeled) connecting the first seat 111 and a second end (unlabeled) away from the first end. The first end and the second end are opposite to each other along the Y direction. Along the axial direction of the second fixing hole ( Figure 4In the X direction, the length of the second seat 112 at the first end is greater than the length of the second seat 112 at the second end. Through this design, the widened second seat 112 at the first end can further strengthen the support of the bearing seat 11, thereby improving the structural strength and rigidity of the bearing seat 11.

[0038] In some embodiments, the included angle between the first inner surface 111c and the second inner surface 112c ranges from 95° to 110°, such as 95°, 100°, 105°, 110°, etc. For example, in some embodiments, the included angle between the first inner surface 111c and the second inner surface 112c can be from 100° to 105°. In this way, while ensuring the structural strength of the support 11, the space occupied by the wheel drive assembly 12 on the support 11 can be reduced, providing as much installation space as possible for the wheel drive assembly 12.

[0039] In some embodiments, see Figure 4 The support 11 also includes a mounting bracket 111d disposed on the first seat 111, and the wheel drive assembly 12 is mounted on the mounting bracket 111d. The mounting bracket 111d may be disposed on the first inner surface 111c. Figure 4 The cross-sectional shape of the mounting bracket 111d shown is approximately trapezoidal. Of course, in other embodiments, the mounting bracket 111d can also adopt any other suitable shape, such as a triangle, a square, etc., as long as the wheel drive assembly 12 can be securely mounted on it.

[0040] Figure 5 for Figure 3 A schematic diagram of the wheel drive assembly 12. (See attached diagram.) Figure 5 As shown, in some embodiments, the wheel drive assembly 12 includes a shock absorber 121, a suspension arm 122, and a brake 123. The shock absorber 121 is connected to the mounting bracket 111d. The suspension arm 122 is connected to both the shock absorber 121 and the brake 123. The wheel drive assembly 12, through components such as the suspension arm 122, brake 123, and shock absorber 121, supports the wheel 13 and enables guidance and transmission of the wheel 13's movement.

[0041] In some embodiments, see Figure 2-3 The steering angle module 10 can integrate a wheel 13, which is mounted on the brake 123. By integrating the wheel 13 into the steering angle module 10, the module integration of the steering angle module 10 is further improved, thereby improving the assembly efficiency of the vehicle chassis 100 and the vehicle.

[0042] Figure 6 for Figure 1 A structural schematic diagram of the base frame 20. See also... Figure 6 The chassis 20 has a roughly cross-shaped cross section perpendicular to its thickness direction. In some embodiments, the length direction of the chassis 20 refers to the direction of extension of the longest side among all sides of the chassis 20, which can also be understood as the length direction of the vehicle or the longitudinal direction of the vehicle. Figure 6 In the illustrated embodiment, the X direction is shown. The length direction of the base frame 20 is approximately parallel to the axial direction of the second fixing hole 112a. The width direction of the base frame 20 is the width direction of the vehicle, or the left-right direction of the vehicle. Figure 6 In the illustrated embodiment, the Y-direction is shown. The width direction of the base frame 20 is approximately parallel to the axial direction of the first fixing hole 111a. The thickness direction of the base frame 20 is the direction of gravity, i.e., the vertical direction of the vehicle. Figure 6 The example shown is in the Z direction.

[0043] See further Figure 6 The base frame 20 generally includes a first mating part 21 and a second mating part 22. The first mating part 21 extends generally along the length of the base frame 20 and has a first mounting hole 211 aligned with a first fixing hole 111a. The second mating part 22 connects to the first mating part 21 and has a second mounting hole 221 aligned with a second fixing hole 112a. The second mating part 22 extends at an angle relative to the first mating part 21, thereby forming a clearance notch 20a.

[0044] See Figure 2 and 6 When the support 11 is installed within the clearance notch 20a, the first seat 111 can be attached to the first mating part 21, and the first mounting hole 211 is aligned with the first fixing hole 111a. The corresponding first fastener 51 can pass through the first fixing hole 111a and the first mounting hole 211 in sequence, and then be locked onto the first mating part 21, thereby achieving a fixed connection between the first seat 111 and the first mating part 21. Similarly, the second seat 112 can be attached to the second mating part 22, and the second mounting hole 221 is aligned with the second fixing hole 112a. The corresponding second fastener 52 can pass through the second fixing hole 112a and the second mounting hole 221 in sequence, and then be locked onto the second mating part 22, thereby achieving a fixed connection between the second seat 112 and the second mating part 22.

[0045] Through the above method, the steering angle module 10 can be modularly assembled onto the chassis 20. When using this combination of steering angle module 10 and chassis 20, the steering angle module 10 can adapt to chassis 20 of any size, as long as the chassis 20 has a clearance notch 20a and mounting holes (including a first mounting hole 211 and a second mounting hole 221) that are compatible with the steering angle module 10. Therefore, the dimensions of the chassis 20 of the vehicle chassis 100 provided in some embodiments of this application can be set according to the specific vehicle's size requirements. For example, the length and width of the chassis 20 can be increased or decreased as needed to meet the size requirements of different vehicles.

[0046] In some embodiments, the number of first fixing holes 111a is equal to the number of first mounting holes 211, and the number of second fixing holes 112a is equal to the number of second mounting holes 221. The number of first fixing holes 111a is greater than the number of second fixing holes 112a to more securely connect the carrier 11 and the chassis 20 along the length of the vehicle. Figure 2-3 and Figure 6 In the illustrated embodiment, the first base 111 may have four first fixing holes 111a, which are spaced apart along the X direction; the first mating part 21 has four first mounting holes 211 corresponding to the first fixing holes 111a. The second base 112 may have two second fixing holes 112a, which are spaced apart along the Y direction; the second mating part 22 has two second mounting holes 221 corresponding to the second fixing holes 112a. Of course, in other embodiments, the number of first fixing holes 111a and the number of second fixing holes 112a can be other, such as 2, 3, 4, 5, etc. Moreover, the number of first fixing holes 111a can also be equal to the number of second fixing holes 112a. This application does not make a specific limitation here, as long as a stable connection between the bearing base 11 and the base frame 20 can be achieved.

[0047] In some embodiments, the base frame 20 includes four first mating parts 21 and four second mating parts 22, with each first mating part 21 connected to a corresponding second mating part 22. Furthermore, the base frame 20 may also include a first connecting part 23 connecting two adjacent first mating parts 21 and a second connecting part 24 connecting two adjacent second mating parts 22. This arrangement makes the base frame 20 have a cross-shaped cross-section support beam structure, with the support beam structure symmetrically arranged about the length and width directions of the base frame 20, resulting in structural stability.

[0048] The first mating part 21, the second mating part 22, the first connecting part 23, and the second connecting part 24 can adopt a beam-like structure, such as a crossbeam or a longitudinal beam. Of course, in other embodiments, the first mating part 21, the second mating part 22, the first connecting part 23, and the second connecting part 24 can also adopt other structures, and this application does not specifically limit them.

[0049] See further Figure 2 and Figure 6 The chassis 20 also includes a battery mounting slot 20b. This battery mounting slot 20b is formed by a plurality of first mating parts 21, a plurality of second mating parts 22, a plurality of first connecting parts 23, and a plurality of second connecting parts 24. The vehicle chassis 100 also includes a battery module 30 and a cover plate 40. The battery module 30 is housed within the battery mounting slot 20b. The cover plate 40 covers the chassis 20 and the battery module 30, thereby sealing the battery module 30 between the cover plate 40 and the chassis 20. The shape and size of the cover plate 40 are adapted to the shape and size of the chassis 20.

[0050] See Figure 6 A groove 20c can also be formed on the side of the base frame 20 opposite to the battery mounting slot 20b. The groove 20c can reduce the weight of the base frame 20 and also achieve a shock absorption effect.

[0051] Figure 7 for Figure 1 A schematic diagram of the battery module. See also... Figure 7 The battery module 30 may include a plurality of battery cells 31, which are arranged in an array within the battery mounting groove 20b. In some embodiments, the battery cells 31 may be arranged in a cross shape with equal spacing, which is approximately the same as the cross-sectional shape of the battery mounting groove 20b.

[0052] In some embodiments, the first fastener 51 and the second fastener 52 can be bolts, screws, etc., for example, bolts of sizes such as M16, M18, and M20 can be used. Correspondingly, the first fixing hole 111a, the second fixing hole 112a, the first mounting hole 211, and the second mounting hole 221 can be threaded holes, thereby allowing threaded connection with the corresponding first fastener 51 or second fastener 52.

[0053] In summary, in the embodiments provided in this application, the steering angle module 10 integrates the wheel drive assembly 12, and the axial direction of the first fixing hole 111a intersects the axial direction of the second fixing hole 112a. This allows the steering angle module 10 to be fixedly connected to the chassis 20 in two directions, improving the installation strength of the steering angle module 10 on the chassis 20. This ensures the reliability and stability of the entire vehicle chassis 100 under lateral and longitudinal forces. Furthermore, the steering angle module 10 can be easily and securely installed on the chassis 20, facilitating its positioning and improving installation efficiency and accuracy. Moreover, the wheel drive assembly 12 and the carrier 11 are assembled into a modular steering angle module 10, which is then fixed integrally to the chassis 20 of the vehicle chassis 100. This high degree of module integration reduces the complexity of vehicle assembly and improves assembly efficiency. Additionally, the modular design can adapt to the size requirements of different vehicles, facilitating vehicle size evolution and modular platform design.

[0054] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes 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 scope of patent protection of this application.

Claims

1. A steering angle module for a vehicle chassis, the vehicle chassis including a chassis with a clearance notch; characterized in that, The steering angle module includes: The support includes: A first base body, having a first fixing hole penetrating through the first base body; and A second base body is connected to the first base body and is inclined at an angle relative to the first base body. The second base body has a second fixing hole penetrating through it, and the axial direction of the first fixing hole intersects the axial direction of the second fixing hole. A wheel drive assembly is mounted on the support. When the steering angle module is mounted on the chassis, the bearing seat is located at the clearance notch, the wheel drive assembly is away from the chassis, the first fixing hole is mounted on the chassis by the first fastener, and the second fixing hole is mounted on the chassis by the second fastener.

2. The steering angle module according to claim 1, characterized in that, The first seat has a first outer surface and a first inner surface disposed opposite to each other, and the wheel drive assembly is mounted on the side where the first inner surface is located; The second seat has a second outer surface connected to the first outer surface, and the first outer surface and the second outer surface are perpendicular to each other.

3. The steering angle module according to claim 2, characterized in that, The second seat has a second inner surface disposed opposite to the second outer surface, and the second inner surface is connected to the first inner surface; The angle between the first inner surface and the second inner surface is an obtuse angle.

4. The steering angle module according to claim 3, characterized in that, The included angle between the first inner surface and the second inner surface ranges from 95° to 110°.

5. The steering angle module according to claim 1, characterized in that, The second seat includes a first end connected to the first seat and a second end located away from the first end; Along the axial direction of the second fixing hole, the length of the second seat at the first end is greater than the length of the second seat at the second end.

6. The steering angle module according to claim 1, characterized in that, The support also includes a mounting bracket disposed on the first seat body, and the wheel drive assembly is mounted on the mounting bracket; the wheel drive assembly includes a shock absorber connected to the mounting bracket, a suspension control arm connected to the shock absorber, and a brake connected to the suspension control arm; and The steering angle module also includes a wheel, which is mounted on the brake.

7. A vehicle chassis, characterized in that, include: The underframe has clearance openings; Steering angle module as described in any one of claims 1-6; as well as The first and second fasteners connect the base frame and the steering angle module; When the steering angle module is installed on the base frame, the support is located at the clearance notch, the first fastener passes through the first fixing hole and the second fastener passes through the second fixing hole to lock the steering angle module onto the base frame.

8. The vehicle chassis according to claim 7, characterized in that, The base frame has a cross-shaped cross section perpendicular to its thickness direction, and the base frame includes: A first mating part extends along the length of the base frame, and the first mating part has a first mounting hole aligned with the first fixing hole; and The second mating part is connected to the first mating part to form the clearance notch, and the second mating part has a second mounting hole aligned with the second fixing hole.

9. The vehicle chassis according to claim 8, characterized in that, The chassis is provided with a battery mounting slot; the vehicle chassis also includes a battery module housed in the battery mounting slot, and a cover plate covering the chassis and the battery module.

10. A vehicle, comprising a body, characterized in that, The vehicle also includes a vehicle chassis as described in any one of claims 7-9, and the body is fixedly connected to the vehicle chassis.

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