Rechargeable Nail File Base for Portable Power Continuity

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Solution Overview

Problem

Traditional electric nail files are limited by stationary control boxes with cords, restricting portability, and existing portable systems have battery life constraints, necessitating improved power management and charging solutions.

Innovation Solution

A portable electric nail filing system with a control box and charging base featuring rechargeable batteries and power controllers, allowing for flexible charging and operation modes, including simultaneous battery charging and use, and interchangeable covers for aesthetic customization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a stationary control box with cord is used, then power supply is reliable, but portability is restricted

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidportability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system is divided into separate components: a control box with battery and a charging base with battery. This segmentation allows the control box to be portable while the charging base remains stationary, resolving the contradiction between portability and reliable power supply.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the power supply parameter from fixed AC power to rechargeable battery power. The control box contains a rechargeable battery that can be charged from the charging base, enabling portable operation while maintaining reliable power supply through the battery system.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a portable control box with battery is used, then portability is improved, but battery life is limited

Engineering Contradiction:
ImproveportabilityVSAvoidbattery life
Core Design Contradiction:
Ease of operationVSDuration of action of moving object

Solution Approach 1:

The charging base acts as an intermediary between the power source and the control box battery. It provides a docking station where the control box can be recharged, effectively extending the operational duration without compromising portability during use.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The charging base pre-charges its own battery before the control box needs power. When the control box is docked, it receives charge in advance, ensuring extended battery life and reducing waiting time for recharging during operation.

Inventive Principle:
Principle #10Preliminary action

3Duration of action of moving object

If a charging base with battery is added, then battery life is extended, but device complexity increases

Engineering Contradiction:
Improvebattery lifeVSAvoidsystem complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The charging base serves multiple functions: it acts as a charging station for the control box, provides additional battery capacity to extend operation time, and can function as a power source when docked. This multi-functionality justifies the added complexity by providing multiple benefits from a single device.

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

Solution Approach 2:

The charging base combines the functions of a charging station and an extended power source into a single unit. By merging these functions, the system reduces the need for separate charging devices and cables, actually simplifying the overall system despite the added battery component.

Inventive Principle:
Principle #5Merging (Combining)

4Productivity

If simultaneous charging and operation is enabled, then productivity is improved, but power management complexity increases

Engineering Contradiction:
Improveoperational continuityVSAvoidpower management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses feedback mechanisms to monitor battery levels and power status of both the control box and charging base. This feedback enables intelligent power management that automatically directs power flow to maintain operation while charging, improving productivity without requiring complex manual intervention.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The power management system operates autonomously, automatically managing power flow between the charging base battery and control box battery. The system self-regulates to enable simultaneous charging and operation without requiring complex user intervention or manual power management.

Inventive Principle:
Principle #25Self-service

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

Enhances portability and extends battery life up to four times compared to typical portable systems, while offering customizable aesthetics.

Implementation Method 1

A rechargeable battery is also provided within the charging base which may be charged from an external source such as an AC outlet

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

Implementation Method 2

Connecting to the AC outlet provides power to the base to allow the rechargeable battery of the charging base to be charged and recharged

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP4646964A1Electronic nail file with rechargeable charging base
Publication Date: 2025.11.12 KULR BEAUTY SYSTEMS INC
  • EP4646964A1 patent drawingFigure 1
  • EP4646964A1 patent drawingFigure 2
  • EP4646964A1 patent drawingFigure 3~4

AI summary

The disclosure relates to a portable electric nail filing system, the system including a control box for supplying power and control to an electric nail file handpiece, the control box including a rechargeable battery and a processor. Also, a charging base is provided for engaging the control box, the charging base operable to recharge the rechargeable battery of the control box while the control box is engaged with the charging base, the charging base also including a rechargeable battery to be charged from an external source such as an AC outlet.