Hub motor lead wire device
By designing protective rings and movable protective sleeves, the problems of insufficient waterproof performance of hub motor leads and easy damage to locking mechanisms were solved, achieving better waterproof protection and locking fixation, and extending the service life of the motor.
Patent Information
- Application Number
- CN202520436218.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing hub motor leads have insufficient waterproof performance, and the locking mechanism is simple and easily damaged.
A hub motor lead wire device was designed, including a male plug assembly and a female plug assembly. It adopts a structure with a protective ring, a movable protective sleeve, a reset slider and a reset spring to achieve waterproof protection and locking fixation.
It improves the waterproof performance of the lead wire, enhances the stability of the locking mechanism, and extends the service life of the motor.
Smart Images

Figure CN223942090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hub motor technology, specifically a hub motor lead wire device. Background Technology
[0002] Electric vehicles are the mainstream of future automotive development. Electric vehicles can be divided into hybrid electric vehicles (HEVs) and pure electric vehicles (EVs) based on their drive strategy. Hybrid electric vehicles modify the drive system of traditional vehicles by incorporating an electromechanical system driven by a power source and an electric motor, achieving parallel operation of fuel-powered and electric-powered drives. Pure electric vehicles only have an electric drive system; the driving force of the vehicle is provided by an electric motor, and the energy of the entire vehicle is provided by a single power source. Among all electric vehicle structural designs, the design that integrates the motor directly with the wheels, i.e., the in-wheel motor drive design, eliminates the need for complex transmission mechanisms and differential systems, thereby greatly simplifying the overall vehicle structure, improving transmission efficiency, and saving energy.
[0003] In-wheel motors have been commercialized overseas, especially in the civilian vehicle sector. Major automakers have launched their own pure electric vehicle models, a significant portion of which utilize in-wheel drive technology that integrates wheels and in-wheel motors as the vehicle's drive system. In-wheel motor drive technology has become an important development direction for future electric vehicle drive systems.
[0004] The existing connectors for hub motor leads have insufficient waterproofing, which affects the motor's lifespan. Furthermore, the locking mechanism between the connectors is relatively simple and prone to damage. Summary of the Invention
[0005] Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a hub motor lead wire device, which solves the aforementioned technical problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hub motor lead wire device, comprising a male plug assembly and a female plug assembly. The male plug assembly has a protruding protective ring, multiple mating blocks, a Hall effect male connector, and a three-phase male connector. The female plug assembly has a protective groove, multiple mating grooves, a three-phase hole, and a Hall effect hole. A movable protective sleeve is slidably mounted on the female plug assembly. The movable protective sleeve has three circumferentially spaced sliding grooves, and movable blocks are slidably arranged within the sliding grooves. The male plug assembly has three circumferentially spaced reset sliding grooves, and reset sliders are slidably arranged within the reset sliding grooves. A reset spring is provided within the reset sliding groove, with one end of the reset spring abutting against the inner wall of the reset sliding groove and the other end abutting against the reset slider.
[0008] Preferably, the inner wall of the slide groove has two mutually symmetrical movable slide grooves, and the movable block has two movable sliders that are adapted to the movable slide grooves.
[0009] Preferably, the movable protective sleeve has three limiting grooves, each consisting of a vertical section and an arc-shaped section. The outer side of the female plug assembly has three protrusions, which are slidably arranged in the three limiting grooves.
[0010] Preferably, the three limiting grooves are arranged at intervals along the circumferential direction.
[0011] Preferably, the ends of the three reset sliders that are far apart from each other are semi-circular.
[0012] Preferably, the protective ring is adapted to the size of the protective groove, and the protective ring is made of waterproof rubber.
[0013] Preferably, a plurality of Hall effect male connectors are disposed at the center of the male connector assembly, and a plurality of three-phase male connectors are disposed on the male connector assembly along the circumferential direction.
[0014] Compared with the prior art, this utility model provides a hub motor lead wire device with the following advantages: Through the cooperation of a protective ring, a male plug assembly, and a female plug assembly, the protective ring can be inserted into the protective groove when the male plug assembly and the female plug assembly are connected, providing waterproof protection for the internal Hall effect male connector and three-phase male connector. After the male plug assembly and the female plug assembly are connected, the movable protective sleeve can slide along the female plug assembly towards the male plug assembly and cover the connection point. Simultaneously, rotating the movable protective sleeve at a certain angle aligns multiple reset sliders with multiple sliding grooves. Under the elastic force of the reset spring, the reset sliders are engaged in the sliding grooves, and the movable blocks are pushed out a certain distance, achieving a locking and fixing between the movable protective sleeve and the male plug assembly. When it is necessary to separate the male plug assembly and the female plug assembly, pressing the three movable blocks pushes the reset sliders out of the sliding grooves, thus separating the male plug assembly and the female plug assembly. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the protrusion and female plug assembly of this utility model.
[0017] Figure 3 This is a cross-sectional structural diagram of the movable block and movable protective sleeve of this utility model.
[0018] Figure 4This is a cross-sectional structural diagram of the movable block, movable protective sleeve, and reset slider of this utility model;
[0019] Figure 5 This is a schematic diagram of the female plug assembly of this utility model;
[0020] Figure 6 This is a schematic diagram of the male plug assembly of this utility model.
[0021] The components are: 1. Male plug assembly; 2. Female plug assembly; 3. Movable protective sleeve; 4. Movable block; 5. Protective ring; 6. Connecting block; 7. Protrusion; 8. Limiting groove; 9. Three-phase hole; 10. Hall effect hole; 11. Protective groove; 12. Groove; 13. Movable groove; 14. Movable slider; 15. Three-phase male connector; 16. Reset groove; 17. Reset slider; 18. Reset spring; 19. Hall effect male connector; 20. Connecting groove. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Please see Figure 1-6A hub motor lead wire device includes a male plug assembly 1 and a female plug assembly 2. The male plug assembly 1 has a protective ring 5 protruding from it, and multiple mating blocks 6, a Hall effect male connector, and a three-phase male connector 15 protruding from it. The female plug assembly 2 has a protective groove 11, multiple mating grooves 20, a three-phase hole 9, and a Hall effect hole 10. A movable protective sleeve 3 is slidably installed on the female plug assembly 2. The movable protective sleeve 3 has three grooves 12 arranged at intervals along the circumferential direction. Movable blocks 4 are slidably arranged in the grooves 12. The male plug assembly 1 has three reset grooves 16 arranged at intervals along the circumferential direction. A reset slider 17 is slidably arranged in the reset grooves 16. A reset spring 18 is provided in the reset grooves 16. One end of the reset spring 18 abuts against the inner wall of the reset groove 16, and the other end of the reset spring 18 abuts against the reset slider 17.
[0026] Through the coordinated arrangement of the protective ring 5, male plug assembly 1, and female plug assembly 2, the protective ring 5 can be inserted into the protective groove 11 when the male plug assembly 1 and female plug assembly 2 are connected, thus providing waterproof protection for the internal Hall male connector 19 and three-phase male connector 15. Furthermore, after the male plug assembly 1 and female plug assembly 2 are connected, the movable protective sleeve 3 can slide along the female plug assembly 2 towards the male plug assembly 1 and cover the connection point between the two components. Simultaneously, the movable protective sleeve 3 is rotated at a certain angle, so that multiple reset sliders 17 are aligned with multiple slide grooves 12. Under the elastic force of the reset spring 18, the reset sliders 17 are inserted into the slide grooves 12, and the movable block 4 is pushed out a certain distance, thereby achieving the locking and fixing between the movable protective sleeve 3 and the male plug assembly 1. When it is necessary to separate the male plug assembly 1 from the female plug assembly 2, press the three movable blocks 4 to push the reset sliders 17 out of the slide grooves 12 to achieve the separation of the male plug assembly 1 from the female plug assembly 2.
[0027] Specifically, in this embodiment, two symmetrical movable grooves 13 are provided on the inner wall of the groove 12, and two movable sliders 14 that are adapted to the movable grooves 13 are provided on the movable block 4.
[0028] The movement direction of the movable block 4 can be guided by the cooperation between the movable slide 13 and the movable slider 14, while the movement range of the movable block 4 can be limited.
[0029] Specifically, in this embodiment, the movable protective sleeve 3 is provided with three limiting grooves 8, which are composed of a vertical section and an arc-shaped section. The outer side of the female plug assembly 2 is provided with three protrusions 7, which are slidably arranged in the three limiting grooves 8 respectively.
[0030] The movement range of the movable protective sleeve 3 can be limited by the cooperation between the limiting slide groove 8 and the protrusion 7.
[0031] Specifically, in this embodiment, the three limiting grooves 8 are arranged at intervals along the circumferential direction.
[0032] Specifically, in this embodiment, the ends of the three reset sliders 17 that are far apart from each other are semi-circular.
[0033] Specifically, in this embodiment, the protective ring 5 is adapted to the size of the protective groove 11. The protective ring 5 is made of waterproof rubber. When the male plug assembly 1 and the female plug assembly 2 are connected, the protective ring 5 can be inserted into the protective groove 11 to achieve waterproof protection of the connection part.
[0034] Specifically, in this embodiment, multiple Hall effect male connectors 19 are disposed at the center of the male connector assembly 1, and multiple three-phase male connectors are disposed on the male connector assembly 1 along the circumferential direction.
[0035] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hub motor lead wire assembly, comprising a male plug assembly and a female plug assembly, characterized in that: The male connector assembly has a protective ring, multiple mating blocks, a Hall effect male connector, and a three-phase male connector. The female connector assembly has a protective groove, multiple mating grooves, a three-phase hole, and a Hall effect hole. A movable protective sleeve is slidably installed on the female connector assembly. The movable protective sleeve has three circumferentially spaced sliding grooves, and a movable block is slidably arranged in each groove. The male connector assembly has three circumferentially spaced reset sliding grooves, and a reset slider is slidably arranged in each reset sliding groove. A reset spring is installed in each reset sliding groove, with one end of the reset spring abutting against the inner wall of the reset sliding groove and the other end abutting against the reset slider.
2. The hub motor lead wire device according to claim 1, characterized in that: The inner wall of the slide has two symmetrical movable slides, and the movable block has two movable sliders that are adapted to the movable slides.
3. The hub motor lead wire device according to claim 1, characterized in that: The movable protective sleeve has three limiting grooves, each consisting of a vertical section and an arc-shaped section. The outer side of the female plug assembly has three protrusions, which are slidably arranged in the three limiting grooves.
4. The hub motor lead wire device according to claim 3, characterized in that: The three limiting grooves are arranged at intervals along the circumferential direction.
5. The hub motor lead wire device according to claim 1, characterized in that: The ends of the three reset sliders that are far apart from each other are semi-circular.
6. The hub motor lead wire device according to claim 1, characterized in that: The protective ring is adapted to the size of the protective groove and can be inserted into the protective groove. The protective ring is made of waterproof rubber.
7. A hub motor lead wire device according to claim 1, characterized in that: Multiple Hall effect male connectors are located at the center of the male connector assembly, and multiple three-phase male connectors are arranged on the male connector assembly along the circumferential direction.