Contactless Power Feeding System with Movable Converter
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Solution Overview
Problem
Existing contactless power supplying systems are limited in their ability to provide power to electronic devices without a secondary coil, restricting their layout flexibility and requiring conventional cords for devices without embedded outlets.
Innovation Solution
A contactless power supplying system comprising a power supplying device with a primary coil generating alternating flux and a movable device with a secondary coil, power circuit, and output terminal, allowing power transmission to electronic devices without a secondary coil, with adjustable positioning and orientation for increased layout freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a contactless power supplying system uses electromagnetic induction with primary and secondary coils, then power can be supplied without electric cords, but the system cannot supply power to conventional electronic devices that do not incorporate a secondary coil
Solution Approach 1:
The patent introduces a converter as an intermediary device that bridges between the contactless power supply system and conventional electronic devices. The converter incorporates a secondary coil to receive electromagnetic induction power and provides output terminals that connect to conventional devices via cords, thus enabling power supply to devices without built-in secondary coils while maintaining the cordless benefit for supported devices
Solution Approach 2:
The converter is designed to serve multiple functions: it acts as a power receiver for contactless power supply, a power converter, and a universal adapter for various conventional electronic devices. This multi-functionality allows the system to support both dedicated devices with secondary coils and conventional devices without them
2Device complexity
If the primary coil is fixed in the power supplying housing, then the power supplying structure is simplified, but the layout freedom and positioning flexibility are reduced
Solution Approach 1:
The patent makes the primary coil movable relative to the power supplying housing by introducing a position adjusting mechanism. This allows the primary coil to be dynamically repositioned to different locations and orientations, providing layout freedom and positioning flexibility while maintaining the overall simplicity of the power supplying structure
3Device complexity
If the output terminal is fixed in the movable device, then the device structure is simplified, but the ability to accommodate different electronic devices with various connector positions is limited
Solution Approach 1:
The patent introduces a position adjusting member that enables the output terminal to be repositioned and reoriented relative to the movable device housing. This dynamic adjustment capability allows the output terminal to accommodate different connector positions and types of various electronic devices while keeping the overall device structure relatively simple
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 power supply to electronic devices without embedded outlets, reducing cord usage and allowing flexible placement of devices, including those without integrated secondary coils, by using a movable device with a secondary coil and power circuit to convert induced voltage into usable output voltage.
Implementation Method 1
a primary coil arranged in the power supplying housing extending in the certain direction, in which the primary coil generates alternating flux when receiving high-frequency current
Implementation Method 2
a secondary coil arranged in the power receiving housing, in which the secondary coil interlinks with the alternating flux and generates induced voltage
Data Source
AI summary
A contactless power feeding system comprises a power feeding device and a movable device. The movable device is installed on a power feeding case of the power feeding device, and a liquid crystal TV (E) is installed on the movable device. The liquid crystal TV (E) can be arranged at a desired position on a wall (W) in a room (R) by moving the movable device along the power feeding case. The liquid crystal TV (E) can be arranged at a desired height by moving the liquid crystal TV (E) in the axial direction of a guide pipe provided on a power receiving case. The liquid crystal TV (E) can be directed in a desired direction by rotating the liquid crystal TV (E) around the guide pipe. The contactless power feeding system feeds power to the liquid crystal TV (E) via the power feeding device and the movable device.