Electrostatic cleaning device

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Solution Overview

Problem

Existing electrostatic cleaners face challenges in maximizing static electricity generation force, user convenience, and reducing noise and power consumption, especially when dealing with fine dust and limited space.

Innovation Solution

The electrostatic cleaning device employs a donut-shaped static electricity generator using the van der Graaff generator principle, with a belt that maximizes length and surface area for charge delivery, allows assembly of various cleaning tools, and supplies power in a pulse cycle to reduce noise and consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the length of the electrostatic induction belt is increased to maximize static electricity generation force, then the cleaning ability is improved, but the device size increases

Engineering Contradiction:

Improvestatic electricity generation forceVSAvoiddevice size

Core Design Contradiction:

ForceVSVolume of moving object

Solution Approach 1:

The electrostatic induction belt is wound in a spiral pattern around a cylindrical roller, nesting the belt length within a compact circular space. This allows a long belt (e.g., 100cm or more) to be contained within a small device volume, resolving the contradiction between maximizing static electricity generation force (which requires long belt length) and minimizing device size.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The use of a cylindrical roller with spiral winding transforms the linear belt into a curved, space-efficient configuration. The curvature of the spiral path allows the belt to occupy minimal space while maintaining its full length, thereby achieving high static electricity generation force without increasing device dimensions.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Force

If the surface area of the electrified body part is increased to enhance electrostatic force, then the cleaning efficiency is improved, but the device complexity increases

Engineering Contradiction:

Improveelectrostatic forceVSAvoiddevice complexity

Core Design Contradiction:

ForceVSDevice complexity

Solution Approach 1:

The electrified body part is integrated directly into the housing structure of the device, merging the functional component with the structural component. This eliminates the need for separate attachments or complex assembly mechanisms, thereby increasing the surface area of the electrified body part for enhanced electrostatic force without increasing device complexity.

Inventive Principle:

Principle #5Merging (Combining)

3Force

If continuous power is supplied to maintain high electrostatic charge, then the cleaning ability is improved, but the power consumption increases

Engineering Contradiction:

Improveelectrostatic chargeVSAvoidpower consumption

Core Design Contradiction:

ForceVSUse of energy by moving object

Solution Approach 1:

Instead of continuous power supply, the device uses periodic pulsed power supply to recharge the electrostatic induction belt at intervals. This maintains the electrostatic charge necessary for cleaning ability while significantly reducing overall power consumption, as the motor and power supply operate intermittently rather than continuously.

Inventive Principle:

Principle #19Periodic action

4Productivity

If the motor runs continuously to maintain belt rotation and charge, then the cleaning speed is improved, but the noise increases

Engineering Contradiction:

Improvecleaning speedVSAvoidnoise

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The motor operates periodically rather than continuously, rotating the electrostatic induction belt in pulses to maintain sufficient charge and cleaning speed. During idle periods between pulses, the motor stops, eliminating continuous noise generation while still achieving effective cleaning performance through the accumulated electrostatic charge from previous rotations.

Inventive Principle:

Principle #19Periodic 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

This configuration enhances static electricity generation, increases user convenience by allowing versatile cleaning options, reduces noise, and extends battery life by minimizing power usage.

Implementation Method 1

a belt (23a) rotatably installed in an inner space of the first electrified body part (21a) and configured to transfer the negative charge

Methodology Applied

Scientific EffectElectrostatic induction: Electrostatic Induction

Implementation Method 2

configuring a static electricity generator that generates static electricity using the principle of the van der Graf generator in a donut-shape

Methodology Applied

Scientific EffectVan der Graf generator principle: Electrostatic Induction

Data Source

PatentUS12611082B2Electrostatic cleaning device

Publication Date: 2026.04.28 LG HOUSEHOLD & HEALTH CARE LTD

AI summary

An electrostatic cleaning device includes: a static electricity generator configured to generate static electricity; a handle part connected to one side of the static electricity generator; and a cleaning tool adapted to be assembled to and disassembled from the static electricity generator. The static electricity generator includes a first electrified body part configured as a donut-shaped case and configured to deliver a negative charge to the cleaning tool; a belt rotatably installed in an inner space of the first electrified body part and configured to transfer the negative charge; and a second electrified body part configured to supply the negative charge to the belt.