Mobile Terminal Battery Sharing via Power Control Circuit

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Solution Overview

Problem

Mobile terminals cannot share batteries, leading to inconvenience when one device runs out of power, especially in environments without charging facilities, as existing technologies do not allow for seamless power transfer between devices.

Innovation Solution

A system and method for sharing a battery between mobile terminals, comprising a power supply end and a power utilization end, with a power supply control unit and a power management unit that enables power transfer through a circuit interface, allowing one device to supply power to another without requiring external charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If battery replacement is used to power a mobile terminal, then the terminal can be used again, but the other terminal cannot be used simultaneously

Engineering Contradiction:
Improvebattery replacement convenienceVSAvoidsimultaneous terminal usage
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system segments the power supply function from the terminal body, allowing the battery to be independently shared between multiple terminals through a power sharing controller that manages power distribution separately from the terminal operations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A power sharing controller acts as an intermediary between multiple terminals and a shared battery, managing power distribution and enabling simultaneous charging of multiple terminals without direct battery replacement in each device

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a shared battery system is implemented, then multiple terminals can be powered simultaneously, but the system complexity increases

Engineering Contradiction:
Improvebattery sharing capabilityVSAvoidpower management system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The power sharing controller is designed with multi-functionality, serving as a universal power management unit that can charge multiple different terminals simultaneously, reducing the need for separate power management systems for each terminal

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

Solution Approach 2:

The system merges the power management functions of multiple terminals into a single power sharing controller, consolidating battery management, charging control, and power distribution into one unified component

Inventive Principle:
Principle #5Merging (Combining)

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 simultaneous use of mobile terminals without external charging, increasing battery utilization modes and facilitating user convenience by allowing power sharing between devices.

Implementation Method 1

a battery of the power supply end, a circuit interface of the power supply end and a power supply control unit of the power supply end

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

the power supply switch subunit, coupled with the circuit interface of the power utilization end, the battery of the power utilization end and the power supply control unit of the power utilization end respectively, is configured to control the circuit interface of the power utilization end or the battery of the power utilization end to couple with the power supply control unit of the power utilization end

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP2515416B1System, method and mobile terminal for sharing battery between mobile terminals
Publication Date: 2019.04.10 ZTE CORP
  • EP2515416B1 patent drawingFigure 1~2
  • EP2515416B1 patent drawingFigure 3~4
  • EP2515416B1 patent drawingFigure 5~6

AI summary

A system, a method, and a mobile terminal for sharing a battery between mobile terminals are disclosed, which can solve a problem that the battery can not be shared between mobile terminals in the prior art. In accordance with the present invention, a mobile terminal having power supplying ability is able to supply power to a mobile terminal lacking power by an external power supply line, power control circuits of the power supply end and the power utilization end are controlled, the power utilization end is able to detect an electricity quantity of the power supply end, and the sharing of a battery between two mobile terminals can be achieved, thereby greatly increasing utilization modes of the battery without external charging power supply so as to facilitate the using of a user.