Hub motor module of trailing arm suspension

Abstract

The invention belongs to the technical field of electrics, and particularly relates to a trailing arm suspension hub motor module, in the trailing arm suspension hub motor module, a hub motor shell and a trailing arm suspension structure are integrally designed to form a trailing arm suspension and motor shell integrated structure (2); a high-power cabin-penetrating connector (3) is embedded into the trailing arm suspension structure; the hub motor output end (1) is directly installed at the trailing arm end and is in threaded connection with one end of the trailing arm suspension and motor shell integrated structure (2) through a standard part, a cable is connected with the cabin penetrating connector (3) along the trailing arm suspension and motor shell integrated structure (2), and the connector protection cover (4) is connected with the trailing arm suspension and motor shell integrated structure (2) through a standard part. The trailing arm suspension structure is connected with a vehicle body auxiliary seat through a bearing set, an O-shaped ring (7), a first lip-shaped sealing ring (8) and a second lip-shaped sealing ring (9), and the sealing and defending functions are achieved. The module can realize quick unlocking / plugging / replacement of a mechanical structure and high and low piezoelectricity.

Description

Technical Field

[0001] This invention belongs to the field of electrical technology, specifically relating to a trailing arm suspension hub motor module, which is suitable for the walking and driving systems of wheeled vehicles. Background Technology

[0002] Electric vehicles are a significant trend in the current automotive industry, involving core technologies in vehicle engineering, motor drive control, and electrical control. Electric vehicle drive systems mainly include three types: wheel-side motor drive, axle motor drive, and hub motor drive. In terms of layout, wheel-side and axle motor drive systems are similar to traditional hydraulic drive systems. The wheel-side and axle motors are located inside the vehicle and connected to the wheel-side reducer via wheel-side drive shafts. The wheel speed and torque are adjusted by a motor controller. Hub motor drive systems use hub motors installed in the drive wheels to drive them. The drive wheels can be controlled independently or as a whole, eliminating other transmission components. This drive system is advantageous for overall layout and increasing ground clearance.

[0003] The suspension structure largely depends on the connection method of the vehicle's drive components. The combination of independent suspension and in-wheel motor drive is widely used in the electric vehicle industry. To ensure a larger interior space, trailing arm suspension is widely used. This structure causes the in-wheel motor wiring harness to be externally mounted on the trailing arm and to twist with it. This makes the harness susceptible to damage from road debris or entanglement. Furthermore, the twisting of the harness with the trailing arm during vehicle use can cause further damage, hindering modular and safety design. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by the present invention is: how to provide a trailing arm suspension hub motor module for realizing the modular integration design of trailing arm suspension and hub motor.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, the present invention provides a trailing arm suspension hub motor module, wherein the hub motor housing and the trailing arm suspension structure are integrated to form an integrated structure of trailing arm suspension and motor housing (2);

[0008] A high-power through-cabin connector (3) is embedded inside the trailing arm suspension structure;

[0009] The hub motor output end (1) is directly installed on the trailing arm end and is screwed to one end of the trailing arm suspension and motor housing integrated structure (2) using standard parts. The cable is connected to the through-cabin connector (3) along the trailing arm suspension and motor housing integrated structure (2). The connector protective cover (4) is connected to the trailing arm suspension and motor housing integrated structure (2) using standard parts.

[0010] The trailing arm suspension structure is connected to the vehicle body mount through bearing assembly, O-ring (7), first lip seal (8), and second lip seal (9) to achieve sealing and defense functions.

[0011] The longitudinal arm adopts a hollow structure in the middle to reserve internal space for the through-cabin connector (3) and its cable. The connector protective cover (4) and the longitudinal arm suspension and motor housing integrated structure (2) form a fully enclosed space to physically protect the cable and realize the functional / structural integration of the longitudinal arm suspension and the wheel hub motor drive system.

[0012] The outer shell through-cabin connector (3) of the integrated structure (2) of the longitudinal arm suspension and motor housing has an electromagnetic shielding function.

[0013] The through-cabin connector (3) is fixed to the through-wall end of the longitudinal arm and can swing synchronously with the longitudinal arm. The kinematic design meets the requirement that there is no relative displacement between the longitudinal arm suspension hub motor and the drive cable / control cable, realizes the longitudinal arm suspension guiding function, and the overall unlocking / plugging / replacement.

[0014] The wall-penetrating connector (3) provides a three-phase high-voltage connection terminal (5) and a 12-phase low-voltage connection terminal (6), which can be matched and connected with the corresponding connector in the vehicle cabin to achieve rapid system connection.

[0015] The trailing arm suspension hub motor module integrates the trailing arm with the hub motor, cable and through-cabin connector (3). The trailing arm and hub motor housing adopt an integrated structure, and the structural design meets the requirements of integrated structural layout and modular integration.

[0016] The trailing arm suspension hub motor module is kinematically designed to ensure that there is no relative displacement between the trailing arm suspension hub motor and the drive / control cables.

[0017] The trailing arm suspension hub motor module is designed to meet the requirements of mixing high and low voltage cables / plugs in confined spaces in terms of electromagnetic compatibility performance.

[0018] The trailing arm suspension hub motor module is designed with internal cable concealment to eliminate the risk of damage from exposed cables and improve system safety. In terms of assembly processability and product versatility, it meets the requirements for rapid unlocking / plugging / replacement in all weather conditions. It can realize rapid unlocking / plugging / replacement of mechanical structure and high and low voltage electrical components. Through a specific sealing structure, it meets the waterproof requirements of electrical equipment, thereby improving reliability and safety.

[0019] The hub motor housing is integrated with the trailing arm suspension structure to form the trailing arm motor housing. A high-power through-cabin connector is embedded inside the trailing arm suspension. The trailing arm motor housing adopts a hollow structure design, hiding the connector and high and low voltage cables inside the hollow cavity of the trailing arm. The through-cabin connector and high and low voltage cables swing with the trailing arm without relative movement, avoiding damage, wear, bending, and shearing of the cables and mechanical structure, thus increasing the reliability of the system. The through-cabin connector, high and low voltage cables, and permanent magnet hub motor are all integrated and installed inside the trailing arm motor housing, achieving effective electromagnetic shielding.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention includes a hub drive motor, an electrical cable, a high-power through-cabin connector, and a vehicle trailing arm suspension mechanism. The hub drive motor is screwed to one end of the trailing arm suspension, the cable is connected to an interface on the vehicle body via the high-power through-cabin connector arranged along the trailing arm, and the trailing arm suspension mechanism is connected to the vehicle body mount via a bearing assembly.

[0022] In designing the trailing arm suspension hub motor module, this invention addresses structural layout requirements, energy supply and control information flow requirements of the hub motor drive system, and the need for rapid disassembly / replacement. It achieves optimized protection and arrangement of electrical cables for the vehicle's trailing arm suspension and hub motor drive system; incorporates an embedded connector design; innovatively applies high- and low-voltage connector layout and electromagnetic compatibility design; integrates the functions and structure of the trailing arm suspension and hub motor drive system; achieves a unified interface definition for the integrated module across the entire vehicle in the front, rear, left, and right directions; and ensures the integrated module is universally applicable across the entire vehicle, enabling rapid unlocking / plugging / replacement. Attached Figure Description

[0023] Figure 1 and Figure 2 This is a schematic diagram of the hub motor module for the trailing arm suspension.

[0024] Figure 3 This is a schematic diagram of a cable connector.

[0025] Figure 4 This is a schematic diagram of the longitudinal arm sealing structure. Detailed Implementation

[0026] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0027] To solve the above technical problems, the present invention provides a trailing arm suspension hub motor module, wherein the hub motor housing and the trailing arm suspension structure are integrated to form an integrated structure of trailing arm suspension and motor housing (2);

[0028] A high-power through-cabin connector (3) is embedded inside the trailing arm suspension structure;

[0029] The hub motor output end (1) is directly installed on the trailing arm end and is screwed to one end of the trailing arm suspension and motor housing integrated structure (2) using standard parts. The cable is connected to the through-cabin connector (3) along the trailing arm suspension and motor housing integrated structure (2). The connector protective cover (4) is connected to the trailing arm suspension and motor housing integrated structure (2) using standard parts.

[0030] The trailing arm suspension structure is connected to the vehicle body mount through bearing assembly, O-ring (7), first lip seal (8), and second lip seal (9) to achieve sealing and defense functions.

[0031] The longitudinal arm adopts a hollow structure in the middle to reserve internal space for the through-cabin connector (3) and its cable. The connector protective cover (4) and the longitudinal arm suspension and motor housing integrated structure (2) form a fully enclosed space to physically protect the cable and realize the functional / structural integration of the longitudinal arm suspension and the wheel hub motor drive system.

[0032] The outer shell through-cabin connector (3) of the integrated structure (2) of the longitudinal arm suspension and motor housing has an electromagnetic shielding function.

[0033] The through-cabin connector (3) is fixed to the through-wall end of the longitudinal arm and can swing synchronously with the longitudinal arm. The kinematic design meets the requirement that there is no relative displacement between the longitudinal arm suspension hub motor and the drive cable / control cable, realizes the longitudinal arm suspension guiding function, and the overall unlocking / plugging / replacement.

[0034] The wall-penetrating connector (3) provides a three-phase high-voltage connection terminal (5) and a 12-phase low-voltage connection terminal (6), which can be matched and connected with the corresponding connector in the vehicle cabin to achieve rapid system connection.

[0035] The trailing arm suspension hub motor module integrates the trailing arm with the hub motor, cable and through-cabin connector (3). The trailing arm and hub motor housing adopt an integrated structure, and the structural design meets the requirements of integrated structural layout and modular integration.

[0036] The trailing arm suspension hub motor module is kinematically designed to ensure that there is no relative displacement between the trailing arm suspension hub motor and the drive / control cables.

[0037] The trailing arm suspension hub motor module is designed to meet the requirements of mixing high and low voltage cables / plugs in confined spaces in terms of electromagnetic compatibility performance.

[0038] The trailing arm suspension hub motor module is designed with internal cable concealment to eliminate the risk of damage from exposed cables and improve system safety. In terms of assembly processability and product versatility, it meets the requirements for rapid unlocking / plugging / replacement in all weather conditions. It can realize rapid unlocking / plugging / replacement of mechanical structure and high and low voltage electrical components. Through a specific sealing structure, it meets the waterproof requirements of electrical equipment, thereby improving reliability and safety.

[0039] The hub motor housing is integrated with the trailing arm suspension structure to form the trailing arm motor housing. A high-power through-cabin connector is embedded inside the trailing arm suspension. The trailing arm motor housing adopts a hollow structure design, hiding the connector and high and low voltage cables inside the hollow cavity of the trailing arm. The through-cabin connector and high and low voltage cables swing with the trailing arm without relative movement, avoiding damage, wear, bending, and shearing of the cables and mechanical structure, thus increasing the reliability of the system. The through-cabin connector, high and low voltage cables, and permanent magnet hub motor are all integrated and installed inside the trailing arm motor housing, achieving effective electromagnetic shielding.

[0040] Example 1

[0041] In this embodiment, the design concept of the trailing arm suspension hub motor module is to integrate the trailing arm suspension and the hub motor housing. Based on the functional requirements of the trailing arm suspension and hub motor, the structural layout of the trailing arm, hub motor, cables, and through-cabin connectors is designed so that the trailing arm suspension and hub motor become an independent drive module, usable on both the left and right sides. This independent drive module can be quickly replaced as needed.

[0042] Figure 1 and Figure 2 This is an assembly drawing of the trailing arm suspension hub motor module, including hub motor output end 1, trailing arm suspension and motor housing integrated structure 2, through-cabin connector 3, and connector protective cover 4. Hub motor output end 1 is screwed to one end of trailing arm suspension and motor housing integrated structure 2 using standard parts. The cable is connected to the through-cabin connector 3 along the trailing arm suspension and motor housing integrated structure 2. Connector protective cover 4 is connected to the trailing arm suspension and motor housing integrated structure 2 using standard parts.

[0043] Figure 3 This is a schematic diagram of the structure of the through-cabin connector 3, which includes three high-voltage connection terminals and 12 low-voltage connection terminals, and is matched and connected to the corresponding structure inside the vehicle cabin.

[0044] Figure 4 This is a schematic diagram of the longitudinal arm sealing structure. The O-ring 7, lip seal 8, and lip seal 9 constitute the sealing structure of the longitudinal arm rotation pair, achieving the function of dustproof and waterproof.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A trailing arm suspension wheel hub motor module, characterized in that: In the longitudinal arm suspension wheel hub motor module, the wheel hub motor housing and the longitudinal arm suspension structure are integrated to form a longitudinal arm suspension and motor housing integrated structure (2); A high-power cabin penetration connector (3) is embedded in the longitudinal arm suspension structure; The wheel hub motor output end (1) is directly mounted on the end of the longitudinal arm and is screwed to one end of the longitudinal arm suspension and motor housing integrated structure (2) using standard parts, the cable is connected to the through-cabin connector (3) along the longitudinal arm suspension and motor housing integrated structure (2), and the connector protection cover (4) is connected to the longitudinal arm suspension and motor housing integrated structure (2) using standard parts; The longitudinal arm suspension structure is connected to the vehicle body attachment seat through a bearing group, an O-ring (7), a first lip-shaped sealing ring (8) and a second lip-shaped sealing ring (9) to achieve a sealing and defensive function.

2. The trailing arm suspension hub motor module according to claim 1, characterized in that: The longitudinal arm adopts a hollow structure in the middle, and reserves internal space for the through-cabin connector (3) and its cables. The connector protection cover (4) and the longitudinal arm suspension and motor housing integrated structure (2) form a fully enclosed space to physically protect the cables, thereby realizing the functional / structural integration of the longitudinal arm suspension and the wheel hub motor drive system.

3. The trailing arm suspension hub motor module according to claim 1, characterized in that: The shell of the longitudinal arm suspension and motor housing integrated structure (2) has an electromagnetic shielding function for the through-cabin connector (3).

4. The trailing arm suspension hub motor module according to claim 1, characterized in that: The through-cabin connector (3) is fixed to the wall-penetrating end of the longitudinal arm and can swing synchronously with the longitudinal arm. The kinematic design satisfies the requirement of no relative displacement between the longitudinal arm suspension hub motor and the drive cable / control cable, realizes the longitudinal arm suspension guiding function, and integral unlocking / plugging / replacement.

5. The trailing arm suspension hub motor module according to claim 1, characterized in that: The through-wall connector (3) provides a three-phase high-voltage connection end (5) and a 12-phase low-voltage connection end (6), which can be matched and connected with corresponding connectors in the vehicle cabin to achieve rapid system connection.

6. The trailing arm suspension hub motor module according to claim 1, characterized in that: The longitudinal arm suspension hub motor module integrates the longitudinal arm with the hub motor, cables and the through-cabin connector (3). The longitudinal arm and the hub motor housing adopt an integrated structure, and the structural design meets the requirements of integrated structural layout and modular integration.

7. The trailing arm suspension hub motor module according to claim 1, characterized in that: The kinematic design of the longitudinal arm suspension hub motor module satisfies the requirement that there is no relative displacement between the longitudinal arm suspension hub motor and the drive cable / control cable.

8. The trailing arm suspension hub motor module according to claim 1, characterized in that: The longitudinal arm suspension hub motor module is designed with electromagnetic compatibility performance to meet the needs of mixed installation of high and low voltage cables / plugs in a small space.

9. The trailing arm suspension hub motor module according to claim 1, characterized in that: The longitudinal arm suspension hub motor module meets the requirements of internal cable hiding in terms of mechanical safety and reliability design, eliminates the risk of damage to exposed cables, and improves system safety. The assembly processability and product universality design meet the requirements of all-weather quick unlocking / plugging / replacement, and can realize quick unlocking / plugging / replacement of mechanical structures and high and low voltage electricity. Through a specific sealing structure type, the waterproof requirements of electrical equipment are met, thereby improving reliability and safety.

10. The trailing arm suspension hub motor module according to claim 1, characterized in that: The hub motor housing and the longitudinal arm suspension structure are integrated to form the longitudinal arm motor housing. A high-power through-cabin connector is embedded and installed inside the longitudinal arm suspension. The longitudinal arm motor housing adopts a hollow structure design to hide the connector and high and low voltage cables inside the hollow cavity of the longitudinal arm. The through-cabin connector and high and low voltage cables swing with the longitudinal arm without relative movement, avoiding damage, wear, bending and shearing of the cables and mechanical structure to increase the reliability of the system. The through-cabin connector, high and low voltage cables and permanent magnet hub motor are all integrated and installed inside the longitudinal arm motor housing to achieve effective electromagnetic shielding.

Images