A new electric vehicle rear suspension assembly structure

Abstract

The utility model relates to electric motor car technical field, concretely is a kind of novel electric motor car rear suspension assembly structure, including pedal, the seat rod is arranged on the pedal, supporting unit is arranged on the pedal, the wheel is arranged on the supporting unit, driving mechanism is arranged on the supporting unit, the supporting unit includes the first connecting seat being arranged on the pedal, the second support plate is symmetrically arranged on the first connecting seat, and the second support plate other end is commonly provided with third connecting seat, this novel electric motor car rear suspension assembly structure, shock absorber and driving mechanism are away from wheel and located high place layout design, the operation space is increased when maintaining and replacing tire, the maintenance efficiency of vehicle is improved, maintenance cost is reduced, and since rear suspension component installation position is higher, effectively avoid the knock with road surface obstacle and the attachment of slurry, sandstone and other impurities, reduce component replacement frequency, reduce use cost.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, specifically a novel rear suspension assembly structure for electric vehicles. Background Technology

[0002] In modern electric vehicle design, the rear suspension assembly structure plays a crucial role in the vehicle's performance, stability, and ease of maintenance. Traditional electric vehicle rear suspension structures typically employ a dual-sided swingarm and dual-sided rear shock absorber design. While this structure offers advantages in providing stability and load-bearing capacity, it can be cumbersome during maintenance and tire replacement.

[0003] Patent CN222555086U proposes a novel rear suspension assembly structure for electric vehicles, including a frame, rear swingarm, rear shock absorber, rear brake bracket, rear brake, brake disc, motor, wheel hub, and tire; wherein, the frame is used to connect the rear swingarm and the rear shock absorber; it solves the technical problems of inconvenient maintenance, complex structure, and heavy weight of the rear suspension assembly structure in the prior art.

[0004] However, in the aforementioned existing technologies, the overall component assembly layout is too dense, and the space between various parts is small. This not only increases the difficulty of assembly and maintenance, but also easily affects the normal operation of the vehicle due to mutual interference between components. At the same time, the component installation position is generally too low. During vehicle operation, the rear suspension components are very likely to collide with obstacles such as road bumps, resulting in component damage and shortening service life. Moreover, the excessively low installation position makes the rear suspension components prone to accumulating a large amount of mud, sand and other impurities when driving on bad road conditions such as rainy days and muddy roads. These impurities will not only corrode the components and accelerate component aging, but also affect the normal operation of key components such as shock absorbers, reducing the vehicle's driving performance and safety. Therefore, we propose a new type of electric vehicle rear suspension assembly structure. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a novel rear suspension assembly structure for an electric vehicle, including a pedal, a seat rod mounted on the pedal, a support unit mounted on the pedal, a wheel mounted on the support unit, and a drive mechanism mounted on the support unit.

[0006] In some embodiments, the support unit includes a first connecting seat disposed on the pedal, a second support plate symmetrically disposed on the first connecting seat, and a third connecting seat disposed at the other end of the second support plate. The third connecting seat has a third support plate disposed on both sides and is connected to the wheel via a drive shaft.

[0007] In some embodiments, a fourth connecting seat is provided on the seat rod, and a shock absorber is provided between the fourth connecting seat and the third connecting seat.

[0008] In some embodiments, the seat rod is provided with a second connecting seat, and a first support plate is provided on both sides of the second connecting seat, with the other end of the first support plate disposed on the second support plate.

[0009] In some embodiments, a braking mechanism is provided on the third support plate.

[0010] In some embodiments, the drive mechanism includes a mounting plate disposed on a third support plate, a motor disposed on the mounting plate, a fifth connecting seat disposed on the first connecting seat, and the fifth connecting seat and the motor being connected by a shaft, and a transmission assembly disposed on the mounting plate, and the transmission assembly being connected to a wheel.

[0011] In some embodiments, a triangular structure is formed between the third support plate, the second support plate, and the mounting plate.

[0012] This utility model has at least the following beneficial effects:

[0013] The layout design of the shock absorbers and drive mechanism being far away from the wheels and located at a high position increases the operating space when repairing and changing tires, improving vehicle maintenance efficiency and reducing maintenance costs. In addition, because the rear suspension components are installed at a high position, they effectively avoid collisions with road obstacles and the adhesion of mud, sand and other impurities, reducing the frequency of component replacement and lowering operating costs.

[0014] The triangular support structure design significantly improves the strength of the rear suspension assembly structure, enhances its fatigue resistance, and enables it to better withstand various loads during vehicle operation, thereby improving the vehicle's safety and reliability. Attached Figure Description

[0015] Figure 1 This is a first-person view structural diagram of the present invention;

[0016] Figure 2 This is a front view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall second-view structure of this utility model;

[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0020] In the diagram: 1. Pedal; 2. Seat rod; 3. Shock absorber; 4. Wheel; 5. Support unit; 51. First connecting seat; 52. Second connecting seat; 53. Third connecting seat; 54. First support plate; 55. Second support plate; 56. Third support plate; 57. Fourth connecting seat; 58. Drive shaft; 6. Braking mechanism; 7. Drive mechanism; 71. Mounting plate; 72. Motor; 73. Fifth connecting seat; 74. Transmission assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-5 This utility model provides a technical solution:

[0024] A novel rear suspension assembly structure for an electric vehicle includes a pedal 1, a seat rod 2 mounted on the pedal 1, a support unit 5 mounted on the pedal 1, a wheel 4 mounted on the support unit 5, and a drive mechanism 7 mounted on the support unit 5. The support unit 5 includes a first connecting seat 51 mounted on the pedal 1, second support plates 55 symmetrically arranged on the first connecting seat 51, and a third connecting seat 53 shared at the other end of each of the second support plates 55. Third support plates 56 are mounted on both sides of the third connecting seat 53, and are connected to the wheel 4 via a drive shaft 58. The surface of the pedal 1 is anodized. The pedal 1 has good wear resistance and anti-slip properties. The four corners of the pedal 1 are equipped with shock-absorbing rubber pads, which can effectively reduce the transmission of vibration when the vehicle is running. The seat rod 2 is made of seamless steel pipe and is vertically welded to the middle of the pedal 1. The top is equipped with a seat mounting interface for installing electric vehicle seats. The side wall of the first connecting seat 51 is fixedly connected to the pedal 1 by bolts. The bolts are equipped with anti-loosening nuts to ensure a firm connection. One end of the second support plate 55 is connected to the first connecting seat 51 by welding, and the other end is connected to the third connecting seat 53. The surface is sprayed with an anti-corrosion coating, which can effectively resist the erosion of rainwater and mud.

[0025] The seat rod 2 is provided with a fourth connecting seat 57, and a shock absorber 3 is provided between the fourth connecting seat 57 and the third connecting seat 53. The shock absorber 3 is a hydraulic shock absorber with adjustable damping. One end is connected to the fourth connecting seat 57 through a ball joint bearing, and the other end is also connected to the third connecting seat 53 through a ball joint bearing, so as to achieve shock absorption.

[0026] The drive mechanism 7 includes a mounting plate 71 mounted on the third support plate 56, on which a motor 72 is mounted. A fifth connecting seat 73 is mounted on the first connecting seat 51, and the fifth connecting seat 73 is connected to the motor 72 via a shaft. A transmission assembly 74 is mounted on the mounting plate 71 and is connected to the wheel 4. The surface of the mounting plate 71 is galvanized and fixed to the third support plate 56 with four bolts. Spring washers are provided at the bolt connection points to prevent loosening. The motor 72 is a permanent magnet synchronous motor, which is fixed to the mounting plate 71 with bolts. The motor shaft is connected to the fifth connecting seat 73 via a coupling. The coupling is a plum blossom-shaped elastic coupling, which can compensate for certain axial and radial deviations. The fifth connecting seat 73 is made of cast steel and is fixedly mounted on the first connecting seat 51 to support the shaft end of the motor 72. The transmission assembly 74 includes a chain, a protective plate, and a sprocket. The sprocket is mounted on the output shaft of the motor 72 and the hub of the wheel 4, respectively, and can reliably transmit power.

[0027] During use, the vibrations generated during vehicle operation are transmitted to the support unit 5 through the wheel 4, and then buffered and absorbed by the shock absorber 3. Since the shock absorber 3 and the drive mechanism 7 are far away from the wheel 4 and are located at a high position, on the one hand, when repairing and changing tires, the operator has more operating space and can easily complete the work without disassembling a large number of surrounding parts; on the other hand, during vehicle operation, it effectively avoids the rear suspension components from colliding with obstacles such as road bumps and speed bumps, as well as the adhesion of mud, sand and other impurities.

[0028] Example 2

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] The third support plate 56, the second support plate 55, and the mounting plate 71 form a triangular structure. At the same time, the first support plate 54, the second support plate 55, and the seat rod 2 can also form a triangular support relationship. This triangular structure conforms to the principles of mechanics. The two triangular support structures utilize the stability principle of triangles. When subjected to external forces, the forces will be evenly distributed along the three sides, and stress concentration will not occur. When the rear suspension components are subjected to vertical loads, horizontal loads, or lateral loads, the triangular support structure can decompose these loads into component forces on each component, so that the force borne by each component is within its strength allowable range, thereby ensuring the stability and reliability of the entire rear suspension assembly structure. It can evenly distribute the load from the wheel 4 and the drive mechanism 7, and improve the structure's resistance to compression and deformation.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A new type of electric vehicle rear suspension assembly structure comprising a pedal (1), characterized in that: A seat rod (2) is provided on the pedal (1), a support unit (5) is provided on the pedal (1), a wheel (4) is provided on the support unit (5), and a drive mechanism (7) is provided on the support unit (5).

2. The novel electric vehicle rear suspension assembly structure according to claim 1, characterized in that: The support unit (5) includes a first connecting seat (51) disposed on the pedal (1), a second support plate (55) is symmetrically disposed on the first connecting seat (51), and a third connecting seat (53) is disposed on the other end of the second support plate (55). A third support plate (56) is disposed on both sides of the third connecting seat (53), and (25) is connected to the wheel (4) through a drive shaft (58).

3. The novel electric vehicle rear suspension assembly structure according to claim 2, characterized in that: A fourth connecting seat (57) is provided on the seat rod (2), and a shock absorber (3) is provided between the fourth connecting seat (57) and the third connecting seat (53).

4. The novel electric vehicle rear suspension assembly structure according to claim 2, characterized in that: The seat rod (2) is provided with a second connecting seat (52), and a first support plate (54) is provided on both sides of the second connecting seat (52), and the other end of the first support plate (54) is provided on the second support plate (55).

5. The novel electric vehicle rear suspension assembly structure according to claim 2, characterized in that: A braking mechanism (6) is provided on the third support plate (56).

6. The novel electric vehicle rear suspension assembly structure according to claim 2, characterized in that: The drive mechanism (7) includes a mounting plate (71) disposed on a third support plate (56), a motor (72) disposed on the mounting plate (71), a fifth connecting seat (73) disposed on the first connecting seat (51), and the fifth connecting seat (73) and the motor (72) are connected by a shaft. A transmission assembly (74) is disposed on the mounting plate (71), and the transmission assembly (74) is connected to the wheel (4).

7. The novel electric vehicle rear suspension assembly structure according to claim 6, characterized in that: The third support plate (56), the second support plate (55), and the mounting plate (71) form a triangular structure.

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