External Battery Charging Unit for Mobile Devices

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Solution Overview

Problem

The bulkiness and overheating issues in handheld mobile devices due to internal battery charging circuitry, which also limits space for additional features and functionality.

Innovation Solution

An external battery charging unit with a charging circuit that monitors voltage and provides electrical charge, removing the need for internal charging circuitry and allowing for various rechargeable battery types, thus reducing device size and heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If internal battery charging circuitry is included in the handheld device, then the device can charge its battery independently, but the device size increases and heat dissipation becomes problematic

Engineering Contradiction:
Improveindependent battery charging capabilityVSAvoiddevice size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The charging circuitry is extracted from the handheld device and placed in an external docking station. The device includes a connector port that couples to the external charging unit, allowing the battery to be charged externally without requiring internal charging circuitry, thus reducing device size and heat generation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

An external docking station serves as an intermediary between the power source and the device battery. The docking station contains the charging circuitry and communicates with the device through a connector port, enabling battery charging without the device needing to contain the charging circuitry itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If internal battery charging circuitry is included in the handheld device, then the device can charge its battery independently, but the device generates excessive heat

Engineering Contradiction:
Improveindependent battery charging capabilityVSAvoidheat dissipation
Core Design Contradiction:
Ease of operationVSTemperature

Solution Approach 1:

The charging circuitry is extracted from the handheld device and placed in an external docking station. This removes the heat-generating charging components from the device, allowing the device to operate at lower temperatures while still maintaining the ability to charge the battery independently through the external unit.

Inventive Principle:
Principle #2Taking out (Extraction)

3Volume of moving object

If internal charging circuitry is removed from the handheld device, then device size is reduced, but the device loses independent battery charging capability

Engineering Contradiction:
Improvedevice sizeVSAvoidindependent battery charging capability
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The external docking station is designed to be universally compatible with the device type, providing charging functionality that the device itself lacks. The connector port and communication protocol are designed so that the docking station can independently manage battery charging, effectively making the charging system multi-functional across the device-docking station interface.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Volume of moving object

If internal charging circuitry is removed from the handheld device, then space for additional features is increased, but the device cannot charge its battery without external equipment

Engineering Contradiction:
Improveavailable space for featuresVSAvoidbattery charging flexibility
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The charging circuitry is extracted from the device and placed externally, creating space within the device for additional features and functionality. The device maintains charging flexibility through the external docking station that can be connected when charging is needed, allowing the device to be lighter and more feature-rich while preserving charging capability.

Inventive Principle:
Principle #2Taking out (Extraction)

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 minimizes device size, reduces heat issues, and allows for additional circuitry and battery types, enhancing performance and user flexibility.

Implementation Method 1

a charging circuit for monitoring a voltage reading of the rechargeable battery

Methodology Applied
Scientific EffectVoltage monitoring: Ohm's Law

Implementation Method 2

the charging unit configured to be coupled to an electrical power source for providing an electrical charge for charging the rechargeable battery

Methodology Applied
Scientific EffectElectrical charge transfer: Conduction (electrical)

Data Source

PatentUS8415923B2External battery charging unit
Publication Date: 2013.04.09 PSION INC
  • US8415923B2 patent drawing
  • US8415923B2 patent drawing
  • US8415923B2 patent drawing

AI summary

There is disclosed a mobile device comprising: a battery module configured to receive at least one rechargeable battery, a device circuitry module configured to communicate between the battery module and a charging circuit located on an external charging unit; and, a connector port configured to couple the external charging unit to the battery module for providing an electrical charge to said at least one rechargeable battery.