Indoor Dust Collection Airflow Control for Moving Dust Sources

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Solution Overview

Problem

Conventional dust collecting systems cannot efficiently control the direction of air currents from air conditioners to effectively collect dust generated by human movements, leading to reduced dust collection efficiency due to dust being blown leeward and settling on surfaces.

Innovation Solution

An indoor dust collecting system that includes an air conditioner with a wind direction control mechanism, a moving body detector, and a dust collector, which directs the air current from the air conditioner towards the dust collector via the detected source of dust, avoiding obstacles and optimizing air flow paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If air is discharged from the air conditioner toward the spot where dust is generated, then dust can be conveyed to the dust collector, but dust may be moved leeward and settle on surfaces, reducing collection efficiency

Engineering Contradiction:
Improvedust collection efficiencyVSAvoiddust settling on surfaces
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system uses a moving body detector to detect the position of dust generation sources in real-time, and the wind direction control means adjusts the air blowing direction based on this feedback information. This closed-loop control ensures air is directed precisely toward the dust source without causing leeward settling, resolving the contradiction between effective dust conveyance and preventing dust settlement.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The wind direction control means dynamically adjusts the air blowing direction based on the real-time position of the dust generation source detected by the moving body detector. This dynamic adjustment allows the system to adapt to changing conditions and maintain optimal dust collection efficiency while preventing dust from settling on surfaces.

Inventive Principle:
Principle #15Dynamics

2Productivity

If wind direction is not controlled in consideration of air conditioner position and dust collector position, then the system is simpler to operate, but dust collecting efficiency is lowered

Engineering Contradiction:
Improvedust collecting efficiencyVSAvoidwind direction control complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system automatically detects the position of the dust generation source using the moving body detector and autonomously adjusts the wind direction through the wind direction control means. This self-service capability eliminates the need for manual intervention, making the system easy to operate while maintaining high dust collection efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control system receives feedback from the moving body detector about dust source position and automatically adjusts the air blowing direction accordingly. This automated feedback control resolves the contradiction by handling the complexity of wind direction control internally, keeping the system easy to operate while maximizing dust collection efficiency.

Inventive Principle:
Principle #23Feedback

3Productivity

If air current impinges on a wall, then air turns into a descending air current, but this promotes falling of dust, reducing collection efficiency

Engineering Contradiction:
Improvedust collection efficiencyVSAvoiddescending air current causing dust to fall
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The wind direction control means dynamically adjusts the air blowing direction to avoid walls and other obstacles in the path of the air current. By continuously adapting the air flow direction based on the position of the dust source and the room layout, the system prevents air from impinging on walls, thereby avoiding the creation of descending air currents that would cause dust to settle.

Inventive Principle:
Principle #15Dynamics

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 system efficiently collects and removes dust generated by human movements by directing the air current from the air conditioner to the dust collector, enhancing overall room cleanliness and comfort.

Implementation Method 1

an air blowing means operable to generate an air current

Methodology Applied
Scientific EffectAir current: Convection

Implementation Method 2

a dust collecting means operable to collect dust, which moves with an indoor air current, by suction

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentUS8734578B2Dust collecting system
Publication Date: 2014.05.27 PANASONIC HOLDINGS CORP
  • US8734578B2 patent drawing
  • US8734578B2 patent drawing
  • US8734578B2 patent drawing

AI summary

An indoor dust collecting system includes an air conditioner having an indoor unit that generates an air current, a dust collector, and a controller for controlling the air current from the indoor unit. A moving body detector is provided to detect a moving body such as, for example, a person, a pet, a cleaning robot, and the like. The air current from the indoor unit is controlled by the controller based on the position of the indoor unit, the position of a spot of occurrence of dust detected by the moving body detector, and the position of the dust collector such that the air current from the indoor unit reaches the dust collector via the spot of occurrence of dust in order for the dust collector to effectively suck the dust.