Air cleaning device and control method thereof

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Solution Overview

Problem

Existing air cleaning devices lack a comprehensive solution for simultaneously addressing dust and bacterial contamination in indoor air, often requiring manual operation mode changes and lacking real-time adaptive control.

Innovation Solution

An air cleaning device with a dual-unit configuration, including a cleaning unit with a dust collection filter and a sterilizing unit with an ultraviolet light source, that can operate in multiple modes (simultaneous, individual, and standby) based on real-time air quality sensor data, automatically adjusting to optimize purification and sterilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single air cleaning device performs both dust collection and sterilization functions, then comprehensive air purification is achieved, but device complexity increases

Engineering Contradiction:
Improveair purification capabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines dust collection and sterilization functions into a single integrated air cleaning device. The housing contains both a dust collection filter and an ultraviolet light source within the same air flow passage, allowing simultaneous dust removal and bacterial sterilization through one device rather than requiring separate units.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The air cleaning device is designed with multi-functionality to handle multiple air contamination types. The single device can switch between dust collection mode, sterilization mode, and simultaneous operation mode, making it a universal air purification solution that adapts to different air quality conditions.

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

2Productivity

If the device operates in simultaneous mode with both cleaning and sterilization units, then comprehensive air purification is achieved, but energy consumption increases

Engineering Contradiction:
Improveair purification efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The device implements dynamic operation modes that allow it to adapt its energy consumption based on air quality conditions. The control unit can switch between standby mode (low energy), dust collection mode only, sterilization mode only, or simultaneous operation mode (high energy), optimizing energy use while maintaining purification effectiveness.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device changes its operational parameters by switching between different modes. The control unit monitors air quality and adjusts the operation state of the cleaning unit and sterilizing unit independently, allowing parameter optimization where both units operate at full capacity only when necessary based on detected contamination levels.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If manual operation mode changes are required, then device control is simple, but user convenience decreases

Engineering Contradiction:
Improveoperation simplicityVSAvoidautomatic control
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The device incorporates a sensor that continuously monitors air quality and provides feedback to the control unit. Based on this feedback, the control unit automatically determines the appropriate operation mode (standby, dust collection only, sterilization only, or simultaneous operation), eliminating the need for manual mode selection by the user.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The air cleaning device performs self-diagnosis and self-control through its sensor and control unit. The system automatically adjusts its operation based on detected air quality conditions, serving itself by making intelligent decisions about when to activate dust collection, sterilization, or both functions simultaneously.

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 indoor air quality by efficiently removing dust and bacteria through adaptive operation modes, optimizing energy use and extending the lifespan of components, while providing a user-friendly and automated air purification system.

Implementation Method 1

a dust collection filter in the first passage to collect dust from the air flow generated by the first fan and moving through the first passage

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

an ultraviolet light source to irradiate ultraviolet rays to the air flow generated by the second fan and moving through the second passage

Methodology Applied
Scientific EffectUltraviolet irradiation: Absorption (EM radiation)

Data Source

PatentUS20240238714A1Air cleaning device and control method thereof
Publication Date: 2024.07.18 SAMSUNG ELECTRONICS CO LTD
  • US20240238714A1 patent drawing
  • US20240238714A1 patent drawing
  • US20240238714A1 patent drawing

AI summary

An air cleaning device including a cleaning unit including a first housing including a first inlet and first outlet, and a first passage from the first inlet to the first outlet, a first fan to generate an air flow through the first passage, and a dust collection filter in the first passage to collect dust from the air flow moving through the first passage; and a sterilizing unit including a second housing including a second inlet connected to the first outlet, a second outlet, and a second passage extending from the second inlet to the second outlet, a second fan to generate an air flow through the second passage, and an ultraviolet light source to irradiate ultraviolet rays to the air flow moving through the second passage. The air cleaning device is operable in a simultaneous mode, two different individual modes, and a standby mode.