Modular Electric Wheel Hub for Fast Battery and Shaft Removal
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Solution Overview
Problem
The complex structure of hub motor electric bicycles makes maintenance and replacement of components difficult and time-consuming, requiring specialized knowledge and expertise.
Innovation Solution
An electric wheel hub design featuring a modular structure with a detachable shaft and battery unit, allowing for easy disassembly and maintenance without dismantling the motor assembly, along with a method that includes steps for detaching the shaft, cover, and cartridge for inspection and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a hub motor structure is used to achieve compact design and artistic appearance, then the aesthetic quality and space utilization are improved, but the structure becomes complicated and maintenance becomes difficult
Solution Approach 1:
The hub motor is divided into independent modular components: motor assembly, battery unit, shaft, and wheel assembly. Each module can be independently maintained or replaced without affecting others, solving the maintenance difficulty while preserving the compact integrated design
2Adaptability or versatility
If many parts and components are interconnected to achieve functional integration, then the device functionality is improved, but the disassembly process becomes time-consuming and complex
Solution Approach 1:
The hub motor comprises functionally integrated but independently removable modules. The battery unit can be detached without disassembling the motor assembly, and the shaft can be removed independently, allowing quick maintenance while maintaining full functionality when assembled
Solution Approach 2:
The battery unit is extracted as a separate removable component from the motor assembly. This allows the battery to be independently replaced or serviced without disturbing the motor components, reducing disassembly time while maintaining functional integration
3Reliability
If specialized knowledge is required to repair specific models, then the repair quality can be ensured, but the accessibility and convenience of maintenance is reduced
Solution Approach 1:
The modular design with standardized interfaces allows the same maintenance procedures to be applied across different models. Common components like the battery unit and shaft can be serviced using general knowledge rather than model-specific expertise, improving accessibility while maintaining repair quality through consistent modular architecture
Data Source
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AI summary
An electric wheel hub is provided. The electric wheel hub includes a shell (1), a motor assembly (2) and a battery unit (3). The motor assembly (2) is disposed in the shell (1) and has a stator (21), a rotor (22) and a shaft (23). The shaft (23) is detachably inserted within the stator (21). The rotor (22) is rotatable with the shell (1) and rotatable relative to the stator (21). The battery unit (3) is disposed in the shell (1) and electrically connected with the motor assembly (2). The battery unit (3) has a cartridge (31) and batteries (34) positionally received within the cartridge (31).