Integrated Electric Bicycle Stem Sharing Controller
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Solution Overview
Problem
Current electric bicycles require separate mounting and wiring for headlights and displays, leading to increased space usage, complex wiring, and higher manufacturing costs due to separate controllers and power supplies.
Innovation Solution
Integration of a headlight and display into a single stem for electric bicycles, sharing a controller and power supply, with flexible connections and thermal management features like thermally conductive materials and heat dissipation grooves, to simplify installation and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display and headlight are separately mounted at the headset, then each component can be independently installed and maintained, but additional space is occupied and wiring becomes complex
Solution Approach 1:
The patent integrates the display assembly and headlight assembly into a single integrated stem structure. The display housing and headlight housing are connected through a connection structure that combines both functions in one unit, reducing the space required at the headset while maintaining independent functionality of each component.
Solution Approach 2:
The integrated stem serves multiple functions simultaneously: it provides structural support for the handlebar, houses the display assembly for showing information, and contains the headlight assembly for illumination. This multi-functional design eliminates the need for separate mounting locations for each component.
2Adaptability or versatility
If separate controllers and power supplies are used for the display and headlight, then each component has dedicated control, but manufacturing costs increase and wiring becomes complex
Solution Approach 1:
The patent combines the control functions of the display and headlight into a single controller integrated within the stem. The power supply is also consolidated into one unit that distributes power to both the display assembly and headlight assembly through internal circuitry, eliminating the need for separate controllers and power supplies.
Solution Approach 2:
The integrated stem acts as an intermediary structure that houses the unified controller and power supply. This central hub manages power distribution and control signals to both the display and headlight assemblies, simplifying the overall wiring architecture while maintaining functional independence.
3Device complexity
If the display and headlight are integrated in a single stem, then manufacturing costs are reduced and wiring is simplified, but thermal management becomes more challenging
Solution Approach 1:
The integrated stem is divided into distinct housing sections: a display housing for the display assembly and a headlight housing for the headlight assembly. These housings are connected through a connection structure that allows for thermal management by separating heat-generating components while maintaining structural integration.
Solution Approach 2:
Different regions of the integrated stem are designed with appropriate thermal properties. The headlight housing, which generates more heat, is designed with specific thermal management features such as heat dissipation structures or thermally conductive materials, while the display housing uses materials suitable for its lower thermal 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 integration reduces manufacturing costs, eliminates complex wiring, and enhances thermal management, while maintaining stability and functionality by using a shared controller and power supply, improving the overall design efficiency.
Implementation Method 1
a filling layer made of thermally conductive material is provided between the headlight assembly and the headlight housing
Implementation Method 2
two sides of the display housing are provided with a plurality of heat dissipation grooves to increase a contact area between the display housing and air
Data Source
AI summary
A headlight and display integrated stem of an electric bicycle includes a display housing and a headlight housing. A display assembly is provided on the display housing. A headlight assembly is provided on the headlight housing. The display housing and the headlight housing are flexibly connected to each other. The headlight assembly and the display assembly are integrated to share a controller and a power supply, simplifying wiring.