Expandable cleaning device

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Solution Overview

Problem

Existing cleaning devices for indoor air pollution struggle with inefficient air purification, high installation costs, and lack of real-time monitoring and control, making it difficult to achieve clean air levels close to zero without excessive resource allocation.

Innovation Solution

An expandable cleaning device with extendable flow guiding pathways and adjustable gas guiders, connected to an AI-controlled indoor air pollution prevention system, allows for real-time monitoring and adjustment of air quality, optimizing CADR and noise levels to achieve cleanroom-class air quality efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the number of cleaning devices is increased to increase processing efficiency, then air purification efficiency is improved, but installation cost and device complexity increase

Engineering Contradiction:
Improveair purification efficiencyVSAvoidinstallation cost
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cleaning device is divided into multiple independent gas guiders that can be selectively activated. Each gas guider operates as an independent cleaning unit with its own filtration element, allowing the system to achieve high purification efficiency by activating only the necessary number of units rather than deploying multiple complete devices.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flow guiding main body serves multiple functions: it acts as a structural support, a flow distribution system, and a mounting platform for multiple gas guiders. This multi-functionality reduces the need for separate components and decreases overall system complexity and installation cost.

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

2Productivity

If the CADR of cleaning devices is increased to speed up air pollution processing, then processing efficiency is improved, but operation noise increases

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidoperation noise
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The total CADR requirement is divided among multiple gas guiders, each operating at a lower individual CADR level. This segmentation allows the system to achieve high overall processing efficiency while each unit operates quietly within acceptable noise tolerance levels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the operating parameters of gas guiders based on real-time air quality monitoring. When air pollution levels are low, the system reduces the operating CADR of active guiders to minimize noise, while maintaining sufficient purification capacity through intelligent control.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If cleaning devices operate continuously to maintain clean air quality, then air purification effectiveness is improved, but energy consumption increases

Engineering Contradiction:
Improveair purification effectivenessVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The networking controller receives real-time air quality data from sensors and uses this feedback to dynamically adjust the operation of gas guiders. When air quality is good, the system reduces or shuts off cleaning operations; when pollution levels rise, the system activates appropriate numbers of gas guiders to maintain clean air quality.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Instead of continuous operation, the system employs periodic monitoring and intermittent cleaning actions. The networking controller periodically assesses air quality conditions and activates gas guiders only when needed, achieving reliable air purification while minimizing energy consumption through on-demand operation.

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

The device achieves near-zero air pollution levels with real-time detection and control, optimizing cost-effectiveness by adjusting to space requirements and noise tolerance, ensuring efficient and energy-saving operation.

Implementation Method 1

at least one filtration element disposed in the flow guiding pathway and covering the at least one gas entrance for filtering the air pollution inhaling from the indoor field

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP4671635A1Expandable cleaning device
Publication Date: 2025.12.31 MICROJET TECH
  • EP4671635A1 patent drawingFigure 1A
  • EP4671635A1 patent drawingFigure 1B~1C
  • EP4671635A1 patent drawingFigure 1D

AI summary

An expandable cleaning device includes a flow guiding main body (1) including a flow guiding pathway (11) extendable in longitudinal/lateral direction to form expanded flow guiding path, fluidly communicated with a gas entrance (12) and a gas exit (13); a filtration element (2) disposed in the flow guiding pathway (11) and covering the gas entrance (12) for filtering air pollution; a gas guider (3) having a CADR for guiding air pollution into the flow guiding pathway (11); and a networking controller (A) receiving a control instruction for activating the gas guider (3), wherein after a required equivalent of CADR of indoor field is intelligently computed, and a number of gas guider (3) and an optimal CADR thereof are decided, an assembled expandable cleaning device complying with the required equivalent of CADR is formed by the flow guiding main body (1) to provide the expanded flow guiding path for disposing the gas guider (3), thereby achieving a purification procedure the air pollution close to zero.