Dual-Module Air Cleaner Layout for 360-Degree Suction

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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, and require user movement to achieve desired air purification.

Innovation Solution

The air cleaner design incorporates dual blowing devices with cylindrical cases and 360-degree suction ports, a dividing plate to direct airflow, and a display device for operation information, enhancing suction capacity and air flow directionality while preventing airflow re-introduction.

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 transitions from single-direction upward discharge to multi-directional discharge by adding a vertical discharge port and a lateral discharge port. This dimensional change in airflow distribution improves purification coverage throughout the indoor space without requiring increased fan blowing amount, thereby avoiding noise and reliability issues.

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

2Ease of manufacture

If a rectangular parallelepiped case is used with limited suction ports, then manufacturing is simplified, but suction capacity is reduced due to structural resistance

Engineering Contradiction:
Improvecase manufacturingVSAvoidair suction capacity
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent segments the air suction function across multiple surfaces of the case by providing suction ports at the front surface, rear surface, and lateral surfaces. This segmentation eliminates the structural resistance problem of limited suction ports while maintaining the simple rectangular case design for ease of manufacture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds suction capability in multiple spatial dimensions by placing suction ports on front, rear, and lateral surfaces. This multi-dimensional suction approach overcomes the limitation of single-direction suction in rectangular cases without complicating the manufacturing process.

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

3Device complexity

If air is discharged in only one upward direction, then the device structure is simplified, but air cleaning function is limited to areas around the air cleaner

Engineering Contradiction:
Improvedischarge structureVSAvoidair cleaning coverage
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent segments the air discharge function into multiple discharge ports with different orientations: an upper discharge port for upward airflow and a lateral discharge port for horizontal airflow. This segmentation enables comprehensive spatial coverage of purified air while maintaining relatively simple device structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a lateral discharge dimension to the traditional vertical discharge configuration. This multi-dimensional discharge approach expands air cleaning coverage to include both vertical and horizontal air circulation, significantly improving overall air purification effectiveness without substantially increasing device complexity.

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

4Device complexity

If a single blowing fan is provided, then device complexity is reduced, but blowing capacity is limited and cannot purify entire indoor space

Engineering Contradiction:
Improvefan system structureVSAvoidblowing capacity
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent divides the blowing function into multiple independent fans (first blowing fan connected to upper discharge port, second blowing fan connected to lateral discharge port). This segmentation enables each fan to operate independently at optimal speeds, achieving high total blowing capacity while keeping individual fan units simple and the overall system manageable in complexity.

Inventive Principle:
Principle #1Segmentation

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 suction and purification efficiency by reducing structural resistance and directing airflow in multiple directions, ensuring comprehensive indoor air cleaning without user intervention and providing intuitive operation feedback.

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 director directs air flow in a vertical direction to an inclined position in which the air flow director directs air flow in a diagonal direction

Methodology Applied
Scientific EffectAirflow generation:

Data Source

PatentUS11090598B2Air cleaner
Publication Date: 2021.08.17 LG ELECTRONICS INC
  • US11090598B2 patent drawing
  • US11090598B2 patent drawing
  • US11090598B2 patent drawing

AI summary

An air cleaner is provided that may include a first air cleaning module having a first fan that generates air flow from a first suction inlet toward a first discharge outlet; a second air cleaning module having a second fan that generates air flow from a second suction inlet toward a second discharge outlet; a dividing plate provided between the first air cleaning module and the second air cleaning module; and a display provided at inside of the dividing plate and in which a light source is provided.