Air Purifier Booster Module Design for Easy Separation and Maintenance

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Solution Overview

Problem

Existing air purifiers with boosters have a complex structure that makes it difficult for users to manage and separate the booster, hindering direct access and maintenance.

Innovation Solution

The air purifier design includes a booster case with a booster inlet and outlet, a booster fan, and a fan housing that allows for easy separation and coupling of components, featuring a hook-coupling mechanism and electrical connections for stable assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the booster is integrated into the air purifier body with a complicated structure, then the air flow direction switching function is achieved, but the ease of user management and separation deteriorates

Engineering Contradiction:
Improveease of user managementVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The booster is separated from the air purifier body as an independent, separable component. The booster includes its own housing, fan, and control circuitry, allowing users to easily remove and manage it separately from the main unit while maintaining the air flow direction switching function.

Inventive Principle:
Principle #1Segmentation

2Ease of repair

If the booster is made separable for easy management, then the ease of maintenance is improved, but the stability of coupling state deteriorates

Engineering Contradiction:
Improveease of maintenanceVSAvoidcoupling stability
Core Design Contradiction:
Ease of repairVSStability of the object's composition

Solution Approach 1:

The booster is pre-equipped with coupling and decoupling mechanisms that enable users to easily attach and detach it from the air purifier body. The coupling structure includes alignment guides and securing features that ensure stable connection when attached, while allowing simple removal when needed for maintenance.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If the booster structure is simplified for easy separation, then the ease of manufacture is improved, but the reliability of air flow switching deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidair flow switching reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The booster is designed as a modular unit with distinct functional components (housing, fan, control circuitry) that can be manufactured separately and assembled. This segmentation simplifies manufacturing while maintaining the reliability of air flow direction switching through dedicated internal structures and secure component mounting.

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

Enables easy management and maintenance of the booster, maintains a stable coupling state, and ensures efficient air flow direction switching, allowing for easy access to internal parts.

Implementation Method 1

a booster fan disposed in the booster case and forming air flowing from the booster inlet to the booster outlet

Methodology Applied
Scientific EffectFan: Fan

Implementation Method 2

The circumference body is hook-coupled to the rear body

Methodology Applied
Scientific EffectHook coupling: Hook

Data Source

PatentEP4664026A1Air purifier
Publication Date: 2025.12.17 LG ELECTRONICS INC
  • EP4664026A1 patent drawingFigure 1
  • EP4664026A1 patent drawingFigure 2
  • EP4664026A1 patent drawingFigure 3

AI summary

The present disclosure relates to an air purifier. The air purifier includes: a body having an inlet formed on a circumferential surface thereof and an outlet formed on an upper surface thereof, and a booster disposed on the body and switching a flow direction of air which flows from the body through the outlet. The booster includes a booster case having a booster inlet and a booster outlet, a booster fan disposed in the booster case, and forming air flowing from the booster inlet to the booster outlet, and a fan housing in which the booster fan is rotatably disposed. The booster case includes a circumference body disposed on a circumference of the fan housing and guiding air discharged from the fan housing, and a rear body disposed at one side of the circumference body and having the booster inlet. The fan housing is coupled to the rear body by penetrating the circumference body.