Partially Integrated Battery for Electric Bicycles
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Solution Overview
Problem
Conventional electric bicycle battery packs are often bulky and externally mounted, lacking efficient integration with the bicycle frame, which can compromise aesthetics and practicality, and do not facilitate easy mounting and removal of electrical components.
Innovation Solution
A partially integrated battery system where the battery housing has a lower portion that fits within the down tube of the bicycle frame and an upper portion that can be easily lifted out, along with a controller mounting component that dissipates heat and secure cable routing solutions, allowing for a more streamlined and user-friendly installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the battery pack is mounted externally to the bicycle frame, then the battery is easily accessible and removable, but the aesthetics are compromised and the integration is poor
Solution Approach 1:
The battery pack is partially nested within the down tube of the bicycle frame, with the lower portion inserted into the tube and the upper portion extending outward. This nesting approach improves aesthetics by integrating the battery into the frame structure while maintaining accessibility by leaving the upper portion exposed for easy connection and removal operations.
2Shape
If the battery pack is fully integrated into the frame, then the aesthetics are improved, but the ease of maintenance and removal is reduced
Solution Approach 1:
The battery pack is segmented into two distinct portions: a lower portion that integrates into the down tube and an upper portion that remains accessible. This segmentation allows the battery to be partially integrated for aesthetic purposes while maintaining ease of maintenance by enabling simple removal of the upper portion without requiring complete disassembly of the frame.
3Strength
If the battery housing is completely enclosed in the down tube, then the structural integrity is improved, but the heat dissipation is reduced
Solution Approach 1:
Instead of fully enclosing the battery in the down tube, only the lower portion is inserted to provide structural support and integration. The upper portion remains exposed, providing sufficient heat dissipation surface area while maintaining the structural benefits of partial integration. This partial action approach balances structural integrity with thermal management requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the integration of electrical components within the bicycle frame, improving aesthetics and user convenience while maintaining structural integrity and ease of maintenance.
Implementation Method 1
a controller mounting component that dissipates heat
Data Source
AI summary
Electric bicycles having partially integrated batteries, as well as down tubes that accommodate such batteries, controllers, and other components, are described. Further, controller mount components and wiring harnesses are also described. Thus, in some embodiments, an electric bicycle includes various devices or components that facilitate easy and efficient mounting of electrical components (e.g., batteries, controllers, cables and/or wires, and so on) to or within frame components of the electric bicycle.