Eyewear Wireless Charging Antenna Layout for Folding Freedom
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Solution Overview
Problem
Existing wireless charging systems for eyewear are limited by positional constraints due to the fixed location of receiver and transmitter antennas, which restricts the folding and positioning of eyewear, and often require additional antennas and circuitry that increase bulk, cost, and interference.
Innovation Solution
Incorporation of repeater antennas in eyewear temples to maintain separation distance and enhance positional freedom, using lightweight and efficient antennas like wire wound or PCB/FPCB types, and damping circuits to optimize signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional antennas and circuitry are used for communications, then wireless power and data transfer capability is improved, but device complexity, cost, and interference risks increase
Solution Approach 1:
The existing wireless power antenna is made to perform dual functions: wireless power transfer and wireless data communication. By modulating the power signal to carry data, the system eliminates the need for separate communication antennas and circuitry, reducing device complexity while maintaining adaptability for both power and data transfer
Solution Approach 2:
The patent combines wireless power transfer and data communication functions into a single antenna system. The power antenna and its associated circuitry are merged to also handle communication tasks, consolidating multiple functions into one component rather than using separate systems
2Loss of energy
If fixed placement of wireless power antennas is used, then power transfer efficiency is improved, but positional freedom and folding flexibility are restricted
Solution Approach 1:
The antenna system is designed to dynamically adapt to different positions and orientations of the eyewear. Rather than requiring fixed placement for optimal efficiency, the system can maintain effective power transfer across a range of positions, enabling the temples to fold freely without being constrained by antenna location requirements
3Object-affected harmful factors
If bulky shielding materials are used, then electromagnetic interference is reduced, but weight and device bulk increase
Solution Approach 1:
Instead of using bulky shielding materials to block electromagnetic interference, the patent employs filtering circuitry that processes and cleans the electromagnetic signals. This approach converts the potential harm of EMI into a manageable signal processing task, eliminating the need for heavy shielding while maintaining electromagnetic compatibility
Solution Approach 2:
The patent replaces mechanical shielding (physical barriers and bulky materials) with electronic filtering solutions. Rather than physically blocking electromagnetic interference with heavy materials, the system uses circuit-based filtering to achieve the same protective effect with minimal weight and bulk
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
Enables flexible folding of eyewear while maintaining wireless charging efficiency and reducing bulk, cost, and thermal issues, with improved data transmission rates and compliance with data standards.
Implementation Method 1
Wireless charging and/or wireless connections are used in a variety of applications for the wireless transfer of electrical energy, electrical power, electromagnetic energy, electrical data signals... Such systems often use inductive wireless power transfer, which occurs when magnetic fields created by a transmitting element induce an electric field, and hence, an electric current, in a receiving element.
Implementation Method 2
The first repeater antenna is configured to receive the first wireless power signals from the wireless transmission system and transmit first repeated wireless power signals, the first repeated wireless power signals based on the first wireless power signals
Data Source
AI summary
Eyewear and receptacles for housing such eyewear include components of a wireless power transfer system. The eyewear includes a receiver system for receiving power from a transmission system associated with the receptacle(s). The receiver system includes at least one receiver antenna, for receiving wireless power from the transmission system, and a repeater antenna for repeating the wireless power signal to the receiver antenna. The receiver antenna is positioned proximate to a first arm of the eyewear and the repeater is positioned proximate to a second arm of the eyewear. Positioning of the receiver and repeater antennas allows for positional freedom of the eyewear and/or the arms of the eyewear, when mechanically received by the receptacle.