Rechargeable Battery With Wrapped Inductive Coil

Solution Overview

Problem

Portable electronic devices with smaller form factors face challenges in powering smaller rechargeable batteries, which require more frequent recharging and lack efficient wireless charging solutions, disrupting continuous device usage.

Innovation Solution

A system and method for wirelessly charging rechargeable batteries using inductive coupling, where a receiving coil wrapped around the battery couples with a transmitting field to transfer energy, with a temperature sensor managing battery temperature for optimal charging and performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If smaller rechargeable batteries are used to meet thinner and smaller form factors, then device portability is improved, but battery power capacity deteriorates

Engineering Contradiction:

Improvebattery sizeVSAvoidpower capacity

Core Design Contradiction:

Volume of moving objectVSQuantity of substance

Solution Approach 1:

The patent replaces conventional wired charging with wireless inductive charging. The receiving coil and transmitting field enable energy transfer without physical connection, eliminating the need to unplug devices during charging and allowing continuous operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables the battery to charge itself wirelessly through inductive coupling. The receiving coil automatically couples with the transmitting field when in proximity, allowing the battery to recharge without external intervention or disconnection from the device.

Inventive Principle:

Principle #25Self-service

2Ease of manufacture

If conventional wired charging is used for rechargeable batteries, then charging function is provided, but device continuity deteriorates

Engineering Contradiction:

Improvecharging capabilityVSAvoiddevice usage continuity

Core Design Contradiction:

Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The patent replaces conventional wired charging with wireless inductive charging. The receiving coil and transmitting field enable energy transfer without physical connection, eliminating the need to unplug devices during charging and allowing continuous operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The wireless charging system allows the battery to charge continuously while remaining installed in the device. The inductive coupling enables power transfer without interruption, maintaining device functionality throughout the charging process.

Inventive Principle:

Principle #20Continuity of useful action

3Duration of action of stationary object

If multiple rechargeable batteries are carried to ensure continuous usage, then device availability is improved, but device complexity deteriorates

Engineering Contradiction:

Improveusage continuityVSAvoidbattery management

Core Design Contradiction:

Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent replaces conventional wired charging with wireless inductive charging. The receiving coil and transmitting field enable energy transfer without physical connection, eliminating the need to unplug devices during charging and allowing continuous operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The wireless charging system allows the battery to charge continuously while remaining installed in the device. The inductive coupling enables power transfer without interruption, maintaining device functionality throughout the charging process.

Inventive Principle:

Principle #20Continuity of useful action

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 wireless charging of rechargeable batteries within portable electronic devices, maintaining device functionality without the need for frequent battery replacement or external charging, while managing battery performance through temperature control.

Implementation Method 1

A system and method for wirelessly charging rechargeable batteries using inductive coupling, where a receiving coil wrapped around the battery couples with a transmitting field to transfer energy

Methodology Applied

Scientific EffectInductive coupling: Electromagnetic Induction

Data Source

PatentEP2579419B1System for wirelessly charging a rechargeable battery and a rechargeable battery

Publication Date: 2018.12.05 BLACKBERRY LTD

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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.