Wireless Power Supply Mat for Multi-Device Vehicle Charging
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Solution Overview
Problem
Power supply vehicles are limited by the number of outlets, and devices requiring noncontact power cannot be supplied power due to the need for cable connections.
Innovation Solution
A power supply mat with a power transmission coil covered by a sheet, electrically connected to a power supply vehicle, allows noncontact power transmission to devices with reception coils, and a control device manages power distribution, ensuring power is only supplied when the vehicle's battery state is sufficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If power supply vehicle uses cable connection to supply power, then power can be supplied to devices, but the number of simultaneously supplied devices is limited by the number of power outlets
Solution Approach 1:
The patent replaces the mechanical cable connection system with an electromagnetic field-based wireless power transmission system. The power supply mat uses a power transmission coil to generate an electromagnetic field that inductively couples with power reception coils in multiple devices simultaneously, eliminating the need for physical cable connections and power outlets.
Solution Approach 2:
The power supply mat provides a universal power supply interface that can simultaneously charge multiple different types of power consuming devices with power reception coils without requiring different connection methods or multiple specialized outlets, as the electromagnetic field covers the entire mat surface.
2Adaptability or versatility
If power supply vehicle uses cable connection, then power can be supplied to devices with outlets, but devices requiring noncontact power cannot be supplied power
Solution Approach 1:
The patent replaces the mechanical cable connection system with an electromagnetic field-based wireless power transmission system. The power supply mat uses a power transmission coil to generate an electromagnetic field that inductively couples with power reception coils in multiple devices simultaneously, eliminating the need for physical cable connections and power outlets.
3Duration of action of moving object
If power supply vehicle supplies power continuously, then devices can operate without interruption, but battery state of charge may become insufficient
Solution Approach 1:
The control device continuously monitors the battery state of charge of the power supply vehicle and automatically adjusts or stops power supply when the battery level becomes insufficient, preventing complete battery depletion and ensuring reliable operation. This feedback mechanism balances continuous power supply needs with battery health maintenance.
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 multiple devices to receive noncontact power without relying on the number of outlets, ensuring continuous power supply during disasters and maintaining battery health by switching to other vehicles when one runs low.
Implementation Method 1
a power transmission coil configured to transmit by noncontact the electric power supplied from the power supply vehicle through the connecting part to an outside power consuming device provided with a power reception coil
Data Source
AI summary
A power supply mat includes a connecting part to be electrically connected via a cable with a power supply vehicle having an external power supply function, a power transmission coil configured to transmit by noncontact the electric power supplied from the power supply vehicle through the connecting part to an outside power consuming device provided with a power reception coil, and a covering sheet configured to cover the power transmission coil.