Folding E-Bike Frame Layout for Minimal Folded Volume
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Typical folding type electric bicycles face limitations in volume reduction and portability due to their design, which makes them difficult to carry in public transportation and store in small spaces, and the battery's presence further complicates folding and stability.
Innovation Solution
A folding type electric bicycle design featuring a first body unit with a guide hole for linear movement, a second body unit connected via a hinge shaft and guide blocks, and a fixing unit to secure the movement, allowing for stable folding and reduced volume, with the battery integrated within the upper frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a typical folding type electric bicycle uses a method of folding a frame in half, then the bicycle can be folded for storage, but the volume reduction is limited and it is hardly carried in public transportation
Solution Approach 1:
The bicycle frame is divided into multiple separable sections that can be independently folded and disconnected. The frame includes a first body unit and a second body unit that can be separated, allowing the bicycle to be broken down into smaller segments for easier carrying in public transportation.
Solution Approach 2:
The folding mechanism transitions from simple two-dimensional folding to three-dimensional multi-directional folding. The frame units can fold in multiple directions and angles, enabling compact stacking and minimal volume occupation when folded, making it suitable for carrying in bags or small storage spaces.
2Ease of operation
If a typical folding type electric bicycle is not fixed in a folded state, then folding can be released for operation, but the folded frame may open accidentally during transport
Solution Approach 1:
A fixing unit is provided that automatically engages to prevent unintended unfolding during transport. The fixing unit includes a fixing member that inserts into a guide hole to lock the frame in its folded position, counteracting any forces that might cause accidental opening before the user intentionally releases it.
Solution Approach 2:
The fixing unit is designed to be automatically engaged or easily activated by the user without requiring additional tools or complex operations. The fixing member can be simply inserted or clicked into place, and the system self-maintains the folded state through this simple fixation mechanism.
3Adaptability or versatility
If a battery is mounted to the typical folding type electric bicycle, then the bicycle can function as an electric vehicle, but the volume reduction through folding is limited and the battery and internal wires must be stably maintained
Solution Approach 1:
The battery is integrated directly into the frame structure rather than being a separate mounted component. The battery housing forms part of the frame body, and internal wires are routed through the frame's structural elements, eliminating the need for separate battery mounting and wiring channels that would increase volume.
Solution Approach 2:
The frame structure serves multiple functions: it provides structural support, contains the battery, routes internal wires, and enables folding mechanisms. This multi-functionality eliminates the need for separate components for each function, reducing overall volume while maintaining electric vehicle functionality.
Data Source
AI summary
The present invention relates to an electric bicycle, and more particularly, to a folding type electric bicycle capable of minimizing a volume to be folded. The present invention discloses a folding type electric bicycle including: a first body unit including a first frame in which a guide hole passing through at least a portion of a side surface of the first frame, a steering part passing through a front portion of the first frame, and a front wheel part supported by a lower side of the steering part; a second body unit including a second frame connected to the first frame, a pedal part disposed on the second frame, and a rear wheel part coupled to a rear portion of the second frame; and a movement unit passing through the guide hole to linearly move.