Conical Wireless Charging Station for Wearables
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Solution Overview
Problem
Traditional wireless charging pads are inefficient for wearable devices with curved or encircling form factors, often requiring orientations that damage the devices or hinder optimal charging efficiency.
Innovation Solution
A conical wireless charging system with charge coils positioned to direct a magnetic field laterally or longitudinally, allowing for efficient charging of devices like smart eyewear, watches, and bracelets without damaging them, and incorporating a stacked segment configuration to reduce physical footprint and enhance visibility during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional planar charging pads are used, then the charging system occupies considerable physical space, but the charging efficiency for wearable devices with curved or encircling form factors is suboptimal
Solution Approach 1:
The charging pad is transformed from a traditional planar flat surface into a conical three-dimensional structure with curved surface. This curvature allows the charging coil to be positioned at an angle, creating a magnetic field that can effectively couple with wearable devices having curved or encircling form factors such as smartwatches and smart eyewear, thereby improving charging efficiency while maintaining a compact footprint
Solution Approach 2:
The invention transitions from a two-dimensional planar charging surface to a three-dimensional conical structure. By adding the vertical dimension and creating a tilted charging surface, the magnetic field can be directed at optimal angles to various device orientations, enabling efficient charging of multiple device types simultaneously without increasing the horizontal footprint
2Productivity
If wearable devices are laid down on planar pads to optimize charging efficiency, then charging efficiency improves, but the device lenses may be damaged
Solution Approach 1:
The conical charging pad creates a tilted surface that allows devices to be charged at an angle rather than lying completely flat. This angular positioning maintains effective magnetic field coupling for charging efficiency while elevating the device lenses away from direct contact with the charging surface, preventing damage
3Volume of moving object
If charge receiving coils are positioned along the back of watch housing, then the design is compact, but optimal charging efficiency cannot be achieved due to curved form factor
Solution Approach 1:
The conical charging pad's curved surface matches the curved back of wearable devices, allowing the charge receiving coils positioned along the device back to maintain optimal alignment with the charging coil throughout the charging process. The angled surface ensures continuous magnetic field coupling despite the curved form factor
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
The conical design optimizes charging efficiency, reduces the physical footprint of charging systems, and allows users to view notifications on devices during charging, with improved alignment through magnetization and passive cooling features.
Implementation Method 1
a magnetic field passes in a direction that is substantially normal/perpendicular to a plane containing the lenses 14
Data Source
AI summary
Systems, apparatuses and methods may provide for a wireless charging system that includes a charge circuit and a housing configuration having a substantially conical outer profile. Additionally, one or more charge coils may be positioned within the housing configuration and coupled to the charge circuit, wherein the one or more charge coils define a charge field direction that is perpendicular to the substantially conical outer profile. In one example, the housing configuration includes a plurality of segments arranged in a stacked configuration.