Dust collection assembly, air purification device and air conditioner

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Solution Overview

Problem

Traditional air purification devices with dense HEPA filters face issues such as frequent filter plugging, high electricity consumption, and loud noise due to increased resistance, which affect their efficiency and user experience.

Innovation Solution

A dust collection assembly featuring a configuration of annular rings with staggered blades and an air guide that forms high voltage direct current fields, improving dust removal efficiency while reducing noise and assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but the filter meshes are easy to plug and need frequent replacement

Engineering Contradiction:

Improvedust removal efficiencyVSAvoidfilter durability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent replaces the mechanical filtration system (HEPA filter net that physically blocks particles) with an electrostatic precipitation system. Annular rings with alternating positive and negative electrodes create electric fields that charge and collect particles without requiring dense physical mesh, thereby maintaining dust removal efficiency while preventing filter plugging and extending service life.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but the electric motor experiences large resistance loss and high electricity consumption

Engineering Contradiction:

Improvedust removal efficiencyVSAvoidelectricity consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent substitutes the high-energy-consumption mechanical filtration approach with an electrostatic precipitation mechanism. The electric fields generated by the annular rings charge particles and drive them to collection surfaces, achieving effective dust removal with significantly lower resistance loss and electricity consumption compared to forcing air through dense HEPA filters.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but the electric motor produces loud noise

Engineering Contradiction:

Improvedust removal efficiencyVSAvoidnoise

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent eliminates the loud noise generated by high-power motors forcing air through dense filters by replacing the mechanical filtration system with electrostatic precipitation. The electric fields perform the dust collection function without requiring high motor power, thereby achieving effective dust removal with minimal noise output.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If an air guide is separately assembled with annular rings, then airflow guidance is improved, but assembly complexity increases

Engineering Contradiction:

Improveairflow guidance efficiencyVSAvoidassembly complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent combines the air guide function directly into the annular ring structure itself. The annular rings are designed with integrated airflow guidance features, eliminating the need for separate air guide components and simplifying the overall assembly while maintaining effective airflow guidance to the dust collection area.

Inventive Principle:

Principle #5Merging (Combining)

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 enhances dust removal efficiency, reduces noise, and simplifies assembly by creating high voltage direct current fields between annular rings, improving airflow uniformity and reducing resistance, thus promoting better indoor air quality.

Implementation Method 1

a plurality of high voltage direct current fields can be formed between the first annular ring and the second annular ring

Methodology Applied

Scientific EffectElectrostatic precipitation: Electrostatic Deposition

Implementation Method 2

high voltage direct current fields can be formed between the first annular ring and the second annular ring

Methodology Applied

Scientific EffectCorona discharge: Corona Discharge

Data Source

PatentEP3202500B1Dust collection assembly, air purification device and air conditioner

Publication Date: 2020.10.28 GD MIDEA AIR CONDITIONING EQUIP CO LTD

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AI summary

Disclosed is a dust collection assembly (100), comprising a first annular ring (110), a second annular ring (120), an insulated spacer assembly (130) and an air guide (220), wherein the second annular ring (120) is arranged below the first annular ring (110); the insulated spacer assembly (130) is arranged between the first annular ring (110) and the second annular ring (120), so that the first annular ring (110) is spaced apart from the second annular ring (120); the air guide (220) is formed as annular and sheathed outside the first annular ring (110) and/or the second annular ring (120); the air guide (220) is connected in a snap-fit with the first annular ring (110) and/or the second annular ring (120); and the external diameter of the upper end of the air guide (220) is greater than that of the lower end thereof. Further disclosed are an air purification device and an air conditioner comprising the dust collection assembly (100).