Air Cleaner Filter Assembly with Brush Unit for Adaptive Purification

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Solution Overview

Problem

Existing air cleaners lack the ability to adapt operation modes based on indoor air contamination levels and do not facilitate easy filter cleaning, leading to inefficiencies and maintenance challenges.

Innovation Solution

An air cleaner design featuring a filter assembly with a gradually shortened diameter, a brush unit for contaminant removal, and a discharge member with adjustable outlets for varying air flow modes, along with a vibration mechanism for filter cleaning, allowing for adaptable operation and easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the air cleaner operates at high speed to purify air quickly in high-contamination spaces, then air purification efficiency is improved, but energy consumption increases

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

Solution Approach 1:

The air cleaner employs multiple fans that can operate at different speeds and modes. The system dynamically adjusts fan speed based on contamination levels, allowing high-speed operation when needed for rapid purification while switching to low-speed or idle mode when contamination is low, thereby optimizing the balance between purification efficiency and energy consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (fan speed, discharge mode) based on detected air contamination levels. Sensors monitor air quality and trigger different operation modes, transforming the static operation into a dynamic system that adapts parameters to match actual environmental conditions, thus improving efficiency without unnecessary energy expenditure

Inventive Principle:
Principle #35Parameter changes

2Use of energy by moving object

If the air cleaner operates at low speed in low-contamination spaces for quietness, then energy consumption is reduced, but air purification efficiency decreases

Engineering Contradiction:
Improveenergy consumptionVSAvoidair purification efficiency
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The system dynamically adjusts fan speed based on contamination levels. When contamination is low, fans operate at low speed for energy savings and quietness. When contamination increases, the system automatically increases fan speed to maintain purification efficiency, ensuring the system responds dynamically to changing environmental conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The air cleaner incorporates sensors that continuously monitor air contamination levels and provide feedback to the control system. This feedback mechanism enables the system to automatically adjust fan speed and operation mode, ensuring that purification efficiency is maintained when needed while allowing energy-saving low-speed operation when air quality is good

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If multiple filters are used to remove various contaminants, then air purification capability is improved, but device complexity increases

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

Solution Approach 1:

The air cleaner uses multiple specialized filters arranged in sequence: pre-filter for large particles, HEPA filter for fine particles, and activated carbon filter for odors and chemicals. Each filter segment targets specific contaminant types, dividing the complex purification task into manageable segments that work together systematically

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter assembly is designed as an integrated multi-functional unit that simultaneously handles particle filtration and odor removal. The combination of different filter types in one assembly provides universal contamination removal capability while maintaining a unified structure that manages complexity through functional integration

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

4Productivity

If the filter assembly collects dust and contaminants, then air purification effectiveness is improved, but maintenance difficulty increases

Engineering Contradiction:
Improveair purification effectivenessVSAvoidmaintenance difficulty
Core Design Contradiction:
ProductivityVSEase of repair

Solution Approach 1:

The filter assembly is designed as a removable unit that can be easily extracted from the housing. Users can take out the entire filter assembly or individual filters for cleaning or replacement without disassembling the whole device, significantly reducing maintenance complexity while maintaining continuous purification effectiveness

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system allows for easy replacement of filters that have collected excessive contaminants. Used filters can be discarded and new ones installed, or filters can be recovered and cleaned. This simplifies maintenance by providing straightforward options for restoring purification effectiveness without complex repair procedures

Inventive Principle:
Principle #34Discarding and recovering

5Device complexity

If the discharge member is fixed with outlets, then device complexity is reduced, but adaptability to different discharge modes decreases

Engineering Contradiction:
Improvedevice complexityVSAvoiddischarge mode flexibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The discharge member is designed to be movable rather than fixed. It can be positioned in different locations (e.g., upward, sideways, or retracted) to adapt to different discharge requirements. This dynamic positioning capability provides versatility in discharge modes while maintaining relatively simple device structure through a single movable component

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

The air cleaner effectively operates in different modes based on indoor conditions, ensuring efficient air purification and easy filter cleaning, thereby enhancing user convenience and maintaining efficiency.

Implementation Method 1

a brush unit configured to remove or separate contaminants attached to an outer surface of the filter assembly from the filter assembly

Methodology Applied
Scientific EffectMechanical contact and friction: Friction

Implementation Method 2

A blowing fan may be mounted to one side of the filter assembly so as to suction air, and the propeller may rotate by air current generated by rotation of the blowing fan

Methodology Applied
Scientific EffectAir current and rotational motion: Wind Power

Data Source

PatentUS11872513B2Air cleaner
Publication Date: 2024.01.16 SAMSUNG ELECTRONICS CO LTD
  • US11872513B2 patent drawing
  • US11872513B2 patent drawing
  • US11872513B2 patent drawing

AI summary

An operation mode of an air cleaner is changed according to the degree of indoor air contamination and an indoor space condition, and one or more filters of the air cleaner can be easily cleaned. The air cleaner includes a housing, an inlet located at a lower part of the housing, a filter assembly, an outlet, and a brush unit. The filter assembly is located above the inlet, and a diameter of the filter assembly is gradually shortened in the direction from an upper part of the filter assembly to a lower part of the filter assembly. The discharge port is located above a second filter assembly. The brush unit is used to eliminate contaminants from an outer surface of the filter assembly.