Rod-Core Wireless Power Receiver for Thin Display Integration
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Solution Overview
Problem
The challenge is to develop a wireless power transceiver that can be integrated into thinner display apparatuses while maintaining high power receiving efficiency, as traditional wide coil designs may not fit within the thinner form factors of modern displays, and existing solutions do not adequately address aesthetic concerns of exposed power lines in wall-mounted TVs.
Innovation Solution
A wireless power transceiver is designed with a magnetic body in a rod shape featuring a solenoid coil and a dual coil wound around its sides, where the dual coil is perpendicular to the solenoid coil and connected in series, allowing for efficient power reception and operation as a repeater, and is configured to be physically separated yet coupled by a magnetic field, with options for spiral or helical winding and capacitors to manage voltage differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a wireless power receiver with a wide coil is used for efficient power transmission, then power receiving efficiency is improved, but the thickness of the display apparatus increases making it incompatible with thin form factors
Solution Approach 1:
The patent transitions from a planar coil structure to a three-dimensional rod-shaped magnetic body with coils wound around it. The solenoid coil is wound along the longitudinal direction while dual coils are wound around the lateral surfaces, creating a volumetric magnetic field structure that achieves high power receiving efficiency without increasing the thickness of the display apparatus.
Solution Approach 2:
The patent integrates multiple coil structures (solenoid coil and dual coils) around a central rod-shaped magnetic body, nesting them in a compact configuration. The solenoid coil is wound around the longitudinal axis while dual coils are wound around the lateral surfaces, all nested within the same spatial envelope to achieve high efficiency without increasing thickness.
2Reliability
If power lines are connected to wall-mounted TVs, then power supply is ensured, but exposed power lines degrade the aesthetics of the TV
Solution Approach 1:
The patent replaces the mechanical connection of power lines with a wireless power transmission system using electromagnetic induction. The rod-shaped magnetic body with solenoid and dual coils generates and receives magnetic fields to transmit power wirelessly, eliminating the need for visible power cables and maintaining aesthetic appearance while ensuring reliable power supply.
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 configuration enables higher power receiving efficiency and allows for a thinner form factor, addressing both the aesthetic and functional needs of modern display systems by effectively transmitting power within the limited space of thinner displays.
Implementation Method 1
a solenoid coil wound around a middle portion of the magnetic body in which the groove is provided, and a dual coil disposed substantially perpendicular to the solenoid coil and wound around portions on both sides of the groove of the magnetic body
Data Source
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AI summary
Provided is a wireless power transceiver including a magnetic body formed in a rod shape with a groove in a middle portion thereof, a solenoid coil wound around the middle portion of the magnetic body in which the groove is formed, and a dual coil disposed substantially perpendicular to the solenoid coil and wound around portions of both sides of the groove of the magnetic body, the dual coil being wound in directions opposite to each other.