Multi-Directional Air Cleaner Flow Control for Wider Purification

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Solution Overview

Problem

Conventional air cleaners have limited capacity and reliability, with reduced suction capacity due to structural resistance and limited air flow direction, resulting in incomplete air purification in indoor spaces, requiring user movement to achieve desired air purification.

Innovation Solution

The air cleaner design incorporates dual blowing devices with cylindrical cases and radial suction ports, along with a flow adjusting device that allows air to be suctioned and discharged in multiple directions, enhancing suction capacity and air flow control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the blowing amount of the fan is increased to improve air purification performance, then the purification capacity is improved, but noise generated by the fan increases and reliability decreases

Engineering Contradiction:
Improveair purification capacityVSAvoidproduct reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent divides the blowing function into multiple fans (first blowing fan and second blowing fan) positioned at different locations. This segmentation allows the system to achieve high total airflow without requiring any single fan to operate at high noise-generating speeds, thus maintaining reliability while improving overall purification capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces multiple discharge directions (upward discharge and lateral discharge) as additional spatial dimensions for air flow. This allows the system to distribute airflow across multiple dimensions rather than concentrating it in one direction, enabling effective air purification throughout the entire indoor space without requiring excessive blowing capacity from individual fans.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If a single blowing fan is used to simplify the device structure, then the device complexity is reduced, but the blowing capacity is limited and air purification coverage is restricted

Engineering Contradiction:
Improveblowing capacityVSAvoidfan configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The blowing function is segmented into multiple fans positioned at different locations with different discharge directions. This segmentation increases total blowing capacity and improves spatial coverage without requiring complex control systems, as each fan operates independently in its optimized position.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The multiple fans serve universal air purification functions but with specialized roles based on their positions. The first blowing fan handles upward discharge for ceiling-area purification, while the second blowing fan handles lateral discharge for floor-area purification, creating a multi-functional system that achieves comprehensive coverage.

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

3Productivity

If air is discharged in only one upward direction to simplify the discharge structure, then the device complexity is reduced, but the air purification coverage in the entire indoor space is limited

Engineering Contradiction:
Improveair purification coverageVSAvoiddischarge structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The discharge structure is extended from a single vertical dimension to multiple dimensions by adding lateral discharge capability. The first blowing fan discharges air upward toward the ceiling, while the second blowing fan discharges air laterally toward the floor, creating three-dimensional air circulation that purifies the entire indoor space effectively.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The discharge function is segmented into different spatial zones: upward discharge for upper space purification and lateral discharge for lower space purification. This segmentation allows comprehensive air purification without requiring a single complex discharge mechanism, as each discharge path is simplified and specialized.

Inventive Principle:
Principle #1Segmentation

4Productivity

If a rectangular parallelepiped case is used to simplify manufacturing, then the ease of manufacture is improved, but structural resistance interferes with air suction and reduces suction capacity

Engineering Contradiction:
Improvesuction capacityVSAvoidcase manufacturing
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The case is designed with a cylindrical shape instead of a rectangular parallelepiped. This curved geometry eliminates corner portions that create structural resistance, allowing air to be suctioned more efficiently from all directions around the device without encountering obstructive edges or angles.

Inventive Principle:
Principle #14Spheroidality (Curvature)

5Productivity

If air suction ports are limited to side and lower portions to simplify the structure, then the device complexity is reduced, but the suction capacity is reduced due to limited suction directions

Engineering Contradiction:
Improvesuction capacityVSAvoidsuction port configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cylindrical case geometry enables air suction ports to be distributed around the entire circumference of the device. This curved surface allows air to be suctioned from all radial directions (front, back, left, right, and angled directions) without requiring complex port positioning, maximizing suction capacity with simple structural implementation.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 design improves air purification by increasing suction capacity, reducing structural resistance, and allowing air to be effectively distributed across indoor spaces, with enhanced air flow control and discharge directionality, ensuring better coverage and reliability.

Implementation Method 1

a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentUS10508658B2Air cleaner
Publication Date: 2019.12.17 LG ELECTRONICS INC
  • US10508658B2 patent drawing
  • US10508658B2 patent drawing
  • US10508658B2 patent drawing

AI summary

An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.