Slim-type air processing device

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Solution Overview

Problem

Double suction type air processing devices have inefficiencies in airflow distribution due to straight-line alignment of inlets, filters, and air inlets, leading to uneven filter usage, increased device length, and reduced air suction efficiency when adjacent to walls.

Innovation Solution

A slim-type air processing device with a centrifugal fan and air suction parts on both sides of the housing, featuring radially arranged air suction paths and filters with different purification functions, controlled by sensors and opening/closing mechanisms to optimize airflow and filter usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If filters are disposed to the front and to the rear of the double suction fan in a straight line, then air can be sucked through both sides of the device, but the overall length of the device increases

Engineering Contradiction:
ImproveairflowVSAvoiddevice length
Core Design Contradiction:
ProductivityVSLength of stationary object

Solution Approach 1:

The patent repositions the air suction parts from the front and rear surfaces to the lateral surfaces of the housing, changing the spatial arrangement from a longitudinal straight-line configuration to a lateral radial configuration. This dimensional change allows the centrifugal fan to draw air from both sides without extending the device length, as the air suction parts are arranged radially around the fan rather than linearly along the device axis.

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

2Device complexity

If an inlet of the double suction fan, filter, and air inlet are arranged in a straight line, then the structure is simple, but there is significant deviation in air flow rate between different regions of the filter, reducing filter usage efficiency

Engineering Contradiction:
Improvestructural simplicityVSAvoidfilter usage efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent transitions from a straight-line arrangement where air inlets, filters, and fan inlets are collinear to a radial arrangement where air suction parts are positioned on lateral surfaces at different angular positions around the centrifugal fan. This radial configuration in the lateral dimension allows air to enter the fan more uniformly from all sides, eliminating the significant flow rate deviation that occurs in straight-line arrangements and improving overall filter usage efficiency.

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

3Area of stationary object

If the device is disposed adjacent to an indoor wall, then space utilization is improved, but the narrow space between the rear air inlet and wall reduces air suction efficiency

Engineering Contradiction:
Improvespace utilizationVSAvoidair suction efficiency
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The patent employs asymmetric placement of air suction parts on the lateral surfaces of the housing rather than symmetric front and rear placement. This asymmetric configuration ensures that at least one air suction part remains accessible from the side even when the device is positioned next to a wall, maintaining air suction efficiency without compromising space utilization. The lateral positioning creates different spatial relationships with surrounding walls, optimizing performance in confined spaces.

Inventive Principle:
Principle #4Asymmetry

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 solution ensures efficient filter usage, reduces device size, maintains air suction performance even if one side is blocked, and allows for selective air purification functions based on environmental conditions, improving overall design and functionality.

Implementation Method 1

a centrifugal fan provided inside the housing

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS10900671B2Slim-type air processing device
Publication Date: 2021.01.26 COWAY CO LTD
  • US10900671B2 patent drawing
  • US10900671B2 patent drawing
  • US10900671B2 patent drawing

AI summary

Disclosed is a slim-type air processing device adopting a centrifugal fan which is capable of air suction on both sides of the device. The disclosed slim-type air processing device comprises: a housing; a centrifugal fan provided inside the housing; an air suction part which is formed in the housing and is provided in the radial direction of the centrifugal fan; and an air processing part which is mounted in the housing, is disposed on a flow path of air flowing from the air suction part to the centrifugal fan, and processes air passing therethrough in a manner of at least one of dehumidification, humidification, and purification. According to the slim-type air processing device, it is possible to efficiently use the entire area of a filter, and to obtain an effect in which the device has a smaller size and has an improved design.