Bicycle Derailleur Intermediate Power Connector
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Solution Overview
Problem
Existing electric derailleurs for bicycles are designed to work with discrete component-level batteries and lack compatibility with e-bike systems, which use higher voltage batteries, and wireless communication systems face security challenges in allowing multiple e-bike systems to control the derailleur without requiring special versions.
Innovation Solution
An electric derailleur powered by an integrated or remote battery, using an intermediate power connector that can attach to either the derailleur or a remote power source, with wireless or wired communication, and encryption to secure communication, allowing e-bike systems to power and control the derailleur without special versions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electric derailleurs are designed to work with discrete component-level batteries, then they can be powered independently, but they lack compatibility with e-bike systems that use higher voltage batteries
Solution Approach 1:
The power connector is designed with a universal interface that can accept both discrete component-level batteries and e-bike system batteries through the same connection mechanism. The connector includes electrical contacts configured to receive power signals from different battery types, enabling a single derailleur design to operate with multiple power sources without requiring separate versions for each battery type.
2Ease of operation
If wireless communication is used to allow multiple e-bike systems to control the derailleur, then ease of operation is improved, but security challenges arise
Solution Approach 1:
The wireless communication system incorporates authentication protocols where the derailleur and e-bike system exchange verification signals before establishing control. The system includes encrypted communication channels and challenge-response mechanisms that ensure only authorized systems can control the derailleur, maintaining security while enabling wireless operation.
3Adaptability or versatility
If an intermediate power connector is used to enable remote power source connection, then adaptability to e-bike systems is improved, but device complexity increases
Solution Approach 1:
The intermediate power connector serves as a mediator between the derailleur and remote power sources. It includes electrical contacts that interface with both the derailleur's power input and external battery connections, enabling power transfer without requiring direct integration between the derailleur and e-bike battery systems. This intermediary component simplifies the overall system architecture by providing a standardized interface layer.
Data Source
AI summary
An apparatus for a bicycle includes an intermediate power connector configured for transmitting power between a bicycle component and a power source positioned remote from the bicycle component. The intermediate power connector has a coupling portion configured for removable attachment to a connecting portion of the bicycle component. The bicycle component can also include a battery having a battery coupling portion configured for removable attachment to the connecting portion of the bicycle component. The battery and the intermediate power connector can be selectively attachable to the bicycle component to provide power thereto.