Bicycle Derailleur Motor Integration and Spatial Arrangement
Solution Overview
Problem
Existing bicycle derailleurs lack efficient integration of electrical components, such as motors and user interfaces, which hinders their arrangement and functionality, leading to potential mechanical overload and reduced user input reliability.
Innovation Solution
The bicycle derailleur incorporates a motor unit, electrical user interface, and informing unit, with a circuit board and motor housing that allows for efficient spatial arrangement, including a gear structure and elastic members to mitigate mechanical impact, and an electric port for power supply, enhancing user input reception and mechanical stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical components (motor unit, user interface, circuit board) are integrated into the derailleur, then functionality and user input reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple electrical components (motor unit, user interface, circuit board, informing unit) into a single integrated derailleur assembly. The motor unit is positioned between the user interface and circuit board, with the circuit board serving as a central hub that electrically connects all components, creating a unified electrical system within the derailleur.
Solution Approach 2:
The circuit board performs multiple functions simultaneously: it serves as the electrical connection hub for the motor unit, receives signals from the user interface, and provides information through the informing unit. This multi-functional design reduces the need for separate components and simplifies the overall system architecture.
2Volume of moving object
If components are arranged in a compact configuration, then space utilization is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent arranges components in a three-dimensional configuration rather than a simple linear layout. The motor unit is positioned between the user interface and circuit board in a stacked arrangement, utilizing vertical space efficiently. This spatial optimization allows compact integration while maintaining accessible connection points for manufacturing and assembly.
3Speed
If motor unit is integrated close to user interface, then response time is improved, but mechanical stress on components increases
Solution Approach 1:
The circuit board serves as an intermediary element positioned between the motor unit and the informing unit. This intermediate positioning allows the motor unit to be closely integrated with the user interface for fast response, while the circuit board provides electrical mediation and signal processing that isolates mechanical stress from critical components.
Data Source
AI summary
A bicycle derailleur comprises a circuit board, an electrical user interface, a motor housing, and a motor unit. The electrical user interface includes a user accessing portion configured to receive a user input. The motor housing includes a motor accommodating space. The motor unit is provided in the motor accommodating space and configured to generate rotational force and configured to be electrically connected to the circuit board. A first direction is defined from the circuit board toward the electrical user interface or from the electrical user interface toward the circuit board. The plurality of second directions is defined to be perpendicular to the first direction. The motor unit is at least partly provided between the user accessing portion of the electrical user interface and the circuit board when viewed in at least one of the plurality of second directions.