Wireless Charging Battery with Wrapped Inductive Coil
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Solution Overview
Problem
Portable electronic devices with smaller form factors face challenges in power storage due to limited internal space, requiring smaller, thinner batteries that may need frequent recharging, and conventional rechargeable batteries require external power sources, disrupting device usage.
Innovation Solution
A system and method for wirelessly charging rechargeable batteries using an inductive element wrapped around the battery cells, coupled with a transmitting field for energy transfer, including a temperature sensor to manage battery temperature for optimal charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If smaller batteries are used to meet thinner form factor requirements, then device portability is improved, but power storage capacity deteriorates
Solution Approach 1:
The patent introduces wireless charging capability that adds a new dimension to power replenishment, moving from traditional plug-based charging to electromagnetic field-based energy transfer. This allows the battery to be charged without physical connection, effectively adding spatial flexibility to the charging process while maintaining the compact form factor.
2Duration of action of stationary object
If rechargeable batteries are used to reduce replacement frequency, then cost-effectiveness is improved, but device usage is disrupted during charging
Solution Approach 1:
The wireless charging system enables the battery to charge itself automatically when placed on a charging surface, without requiring user intervention to connect cables or initiate charging sequences. The battery simply needs to be positioned on the wireless charging pad, and the charging process begins automatically, making the charging operation as simple as placing the device.
3Reliability
If conventional wired charging is used, then charging reliability is improved, but device portability deteriorates
Solution Approach 1:
The patent replaces the mechanical connection system (physical plugs and cables) with an electromagnetic field-based wireless energy transfer system. This substitution eliminates the need for mechanical interfaces while maintaining reliable power transfer through electromagnetic induction or resonance between transmitter and receiver coils.
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 efficient and frequent charging of batteries without disrupting device usage, maintaining performance while extending battery life by managing temperature and improving power delivery.
Implementation Method 1
an inductive element wrapped around the at least one cell of the battery, and a charger having a transmitting field designed to couple with the inductive element
Data Source
AI summary
A wireless charging system having a battery with at least one cell, a receiving coil wrapped around the at least one cell and a charger having a transmitting field designed to couple with the receiving coil of the battery. A battery is further described having at least one cell and having a receiving coil wrapped around at least one cell.