Battery Holder Integration for Shorter E-Bike Control Wiring
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Solution Overview
Problem
Conventional human-powered vehicle driving devices lack improvements in functionality, particularly in the integration and operation of electric switches and wireless communication units, leading to cumbersome wiring and reduced operability.
Innovation Solution
A battery holding device and human-powered vehicle driving device with integrated electric switches and wireless communication units, positioned close to the motor and controller, reducing wiring complexity and enhancing operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electric switches are mounted separately from the motor and controller, then ease of operation is improved, but device complexity and wiring complexity increase
Solution Approach 1:
The electric switch is integrated with the motor and controller into a single assembled unit. The switch housing is formed as one piece with the motor housing, and the controller is mounted on the motor housing. This merging eliminates separate wiring connections and reduces the number of discrete components, thereby reducing wiring complexity while maintaining operational accessibility.
Solution Approach 2:
The motor housing serves multiple functions: it houses the motor, mounts the controller, and forms the switch housing structure. The controller simultaneously manages motor control and processes switch signals. This multi-functionality reduces the need for separate components and wiring, resolving the contradiction between operational ease and device complexity.
2Length of stationary object
If electric switches are positioned close to the motor, then wiring distance is shortened, but ease of operation may be reduced
Solution Approach 1:
The switch housing is formed as one piece with the motor housing, creating an integrated assembly where the switch is positioned adjacent to the motor. This eliminates the need for long wiring connections while the operation member extends through the switch housing to remain accessible from the vehicle exterior, resolving both the wiring length and accessibility requirements.
3Device complexity
If the switch housing is formed as one piece with the motor housing, then device complexity is reduced, but ease of repair may be worsened
Solution Approach 1:
While the switch housing and motor housing are formed as one piece, the electric switch itself is designed as a separable component that can be removed and replaced independently. The switch includes a operation member that extends through the housing, allowing the switch mechanism to be accessed and replaced without disassembling the integrated housing structure, thus maintaining ease of repair despite the integrated design.
Data Source
AI summary
A battery holding device includes a battery holder and a second wireless communication unit. The battery holder is configured to be mountable on a human-powered vehicle. The battery holder includes a battery connector connected to a battery. The second wireless communication unit is provided on the battery holder. The battery connector is removably connected to the battery. The second wireless communication unit is removably attached to the battery holder.