Modular Wireless-Powered Display With Shared Receiver Load Balancing
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Solution Overview
Problem
There is a need for a modular display apparatus that can be powered efficiently and conveniently, particularly one that can distribute power loads effectively through wireless power transfer to achieve a lightweight and easy-to-install solution for large format displays.
Innovation Solution
The display apparatus incorporates multiple wireless power transmitters and receivers with a simple coupling structure, including transmission and reception coils, rectifiers, DC/DC converters, and load share controllers to distribute power among display modules, allowing for efficient power sharing and voltage adjustment across the display modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless power receivers are used in a modular display apparatus, then power distribution capability is improved, but device complexity increases
Solution Approach 1:
The display apparatus is divided into multiple independent display modules, each with its own wireless power receiver. This segmentation allows each module to independently receive and manage power wirelessly, improving power distribution capability while maintaining modular simplicity. Each module can be independently installed, removed, or replaced without affecting other modules.
Solution Approach 2:
The wireless power receiver is designed with universal functionality to handle multiple tasks: receiving wireless power signals, converting power to appropriate voltage levels, and distributing power to multiple display modules. This multi-functionality reduces the need for separate power management components in each module, thereby reducing overall device complexity.
2Ease of operation
If wireless power transfer is implemented in modular display apparatus, then ease of installation is improved, but power management complexity increases
Solution Approach 1:
The wireless power receiver incorporates automatic power management functions including self-diagnosis of power requirements, automatic voltage regulation, and intelligent power allocation to different display modules. This self-service capability eliminates the need for manual power configuration and reduces power management complexity while maintaining ease of installation.
Solution Approach 2:
The system implements feedback mechanisms where the wireless power receiver continuously monitors power consumption of each display module and adjusts power distribution accordingly. This closed-loop control automates power management, reducing complexity while enabling flexible installation and reconfiguration of modular displays.
3Adaptability or versatility
If output terminals of wireless power receivers are connected through a connector, then power sharing among modules is improved, but coupling structure complexity increases
Solution Approach 1:
Multiple output terminals from different wireless power receivers are merged through a common connector that provides both electrical connection and mechanical coupling. This merging allows power sharing among modules while using a single integrated coupling structure, reducing the number of separate connection components needed and simplifying the overall coupling structure.
Solution Approach 2:
The connector is designed with universal functionality to simultaneously provide electrical power connection, mechanical support, and alignment features for multiple display modules. This multi-functionality consolidates what would otherwise require multiple separate components, reducing coupling structure complexity while enabling effective power sharing.
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 solution enables efficient power distribution and sharing among display modules, enhancing the convenience and flexibility of installing large format displays by reducing the complexity of power management and allowing for easy assembly and operation.
Implementation Method 1
Each of the plurality of wireless power transmitters may include a transmission coil configured to generate a magnetic field
Implementation Method 2
each of the plurality of wireless power receivers may include a reception coil disposed to face a corresponding transmission coil and configured to wirelessly receive the power from the corresponding transmission coil
Implementation Method 3
a rectifier configured to rectify and convert alternating current (AC) power received through the reception coil into DC power
Data Source
AI summary
A display apparatus is provided. The display apparatus includes a display including a plurality of display modules, each of which includes a plurality of light emitting devices; a plurality of wireless power transmitters configured to wirelessly transmit power; a plurality of wireless power receivers configured to receive the power from the plurality of wireless power transmitters, each of the plurality of wireless power receivers including output terminals configured to output the power to the plurality of display modules; and a connector configured to connect the output terminals of the plurality of wireless power receivers to each other.