Bicycle Crank Electrical Unit Integrating Wireless and Power Systems
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Solution Overview
Problem
Existing bicycle systems lack an integrated and efficient solution for housing wireless communication units, battery units, and sensors on crank arms, which limits the ability to effectively transmit pedaling force and cadence data to riders and controllers.
Innovation Solution
A bicycle electrical unit is designed to be mounted on a crank arm, incorporating a housing that encloses a wireless communication unit, a battery unit, and sensors such as strain and cadence sensors, with a charge receiver port for power management, allowing for wireless data transmission and efficient power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple components (wireless communication unit, battery unit, sensors) are integrated into a housing on the crank arm, then functionality and data transmission capability are improved, but device complexity increases
Solution Approach 1:
The patent integrates the wireless communication unit, battery unit, and sensors into a single housing that is disposed on the crank arm. This merging of multiple functional components into one unified structure improves versatility while managing complexity through integrated design.
Solution Approach 2:
The housing serves multiple functions: it encloses and protects the wireless communication unit, accommodates the battery unit, and provides mounting for sensors. This multi-functionality approach allows a single component (the housing) to perform several roles, improving adaptability without proportionally increasing complexity.
2Reliability
If a housing is mounted on the crank arm to enclose electronic components, then protection and integration are improved, but the available space and mounting flexibility are reduced
Solution Approach 1:
The wireless communication unit is enclosed within the housing, which itself is mounted on the crank arm. This nested arrangement protects the electronic components while utilizing the existing space on the crank arm structure, minimizing the impact on available space.
3Productivity
If sensors are integrated on the crank arm with wireless communication capability, then data transmission efficiency is improved, but power management complexity increases
Solution Approach 1:
The battery unit is integrated into the same housing as the wireless communication unit and sensors, creating a unified power management system. This combination simplifies power distribution to multiple components while enabling efficient wireless data transmission.
Data Source
AI summary
A bicycle electrical unit is provided for a bicycle crank assembly. The bicycle electrical unit includes a housing, a wireless communication unit and a charge receiver port. The housing is mounted on a crank arm. The wireless communication unit is enclosed in the housing. The charge receiver port is provided on the housing.