Integrated E-Bike Battery Holder for Aligned Quick Attachment
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Solution Overview
Problem
Existing battery units for human-powered vehicles are not easily attachable or detachable in a preferred manner, and existing battery holders are not integrated efficiently with the vehicle's frame, leading to complexity and potential misalignment.
Innovation Solution
A battery holder and drive unit system that allows the battery unit to be attached to the human-powered vehicle via a threaded member, with guide portions for proper alignment and a restriction mechanism to prevent accidental detachment, integrated with the vehicle's frame to simplify attachment and detachment processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery holder is formed separately from the frame of the human-powered vehicle, then the battery unit can be attached to the human-powered vehicle in a preferred manner, but the number of parts increases and device complexity increases
Solution Approach 1:
The battery holder is integrated with the drive unit housing to form a single component, eliminating the need for a separate battery holder part. This merging reduces the total number of parts while maintaining the preferred attachment capability, as the drive unit housing itself provides the mounting structure and attachment interface for the battery unit.
Solution Approach 2:
The drive unit housing serves multiple functions: it encloses the drive unit components, provides structural support, and acts as the battery holder. This multi-functionality allows the same component to fulfill several roles, reducing overall device complexity while maintaining ease of battery attachment.
2Manufacturing precision
If guide portions are added to guide the battery unit in a predetermined direction, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The guide function is segmented into separate guide portions that are distinct from the main attachment mechanism. These guide portions provide directional guidance for battery unit installation while allowing the attachment process to proceed through separate, manageable steps, improving alignment without overly complicating the overall structure.
Solution Approach 2:
The guide portions act as intermediary elements between the battery unit and the battery holder, facilitating proper alignment during attachment. These guide features mediate the interaction between components, ensuring correct positioning before final attachment, thereby improving precision without requiring complex alignment mechanisms.
3Device complexity
If the battery holder is integrated with the drive unit housing, then the number of parts decreases, but manufacturing complexity may increase
Solution Approach 1:
The battery holder functionality is merged into the drive unit housing, creating a single integrated component. This reduces the total part count and simplifies assembly, as fewer separate parts need to be manufactured and assembled. The integrated design allows for potential one-piece molding or casting, which can actually simplify manufacturing processes compared to producing and assembling multiple separate components.
Data Source
AI summary
A battery holder is formed separately from a frame of a human-powered vehicle. The battery holder comprises a battery attachment portion and at least one drive unit connection portion. A battery unit is configured to be attached to the battery attachment portion by a threaded member in a removable manner. The at least one drive unit connection portion is configured to be connected to a drive unit that rotatably supports a crank axle of the human-powered vehicle.