Electrostatic Dust Collection Assembly for Low-Resistance Air Purification
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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 guides airflow through the rings, forming high voltage direct current fields to improve dust removal efficiency while reducing noise and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but the filter meshes easily plug requiring frequent changes
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 dust particles without mechanical contact, eliminating the plugging issue while maintaining high dust removal efficiency.
Solution Approach 2:
The patent changes the operating parameters by introducing high voltage electric fields (positive and negative poles alternating on annular rings) to manipulate particle behavior. This transforms the dust collection mechanism from passive mechanical blocking to active electrostatic charging and collection, allowing continuous operation without filter plugging.
2Reliability
If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but resistance increases causing large motor load and high electricity consumption
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 dust particles without mechanical contact, eliminating the plugging issue while maintaining high dust removal efficiency.
Solution Approach 2:
The patent changes the operating parameters by introducing high voltage electric fields (positive and negative poles alternating on annular rings) to manipulate particle behavior. This transforms the dust collection mechanism from passive mechanical blocking to active electrostatic charging and collection, allowing continuous operation without filter plugging.
3Reliability
If a dense HEPA filter net is used to block particles, then dust removal efficiency is improved, but noise increases due to large motor load
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 dust particles without mechanical contact, eliminating the plugging issue while maintaining high dust removal efficiency.
4Strength
If traditional assembly methods are used for air purification devices, then structural integrity is maintained, but assembly complexity and difficulty increase
Solution Approach 1:
The patent combines multiple functional components into integrated assemblies. The annular rings with electrodes are pre-assembled as complete units, and the housing integrates airflow channels and electrode mounting structures, reducing the number of separate parts and simplifying the overall assembly process while maintaining structural integrity.
Solution Approach 2:
The patent divides the air purification device into modular segments: the housing as a separate assembly, multiple annular ring electrode assemblies that can be independently installed, and the motor assembly. This segmentation allows for easier manufacturing, testing, and maintenance while maintaining overall structural integrity through standardized connection interfaces.
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, leading to improved product quality and user experience in air purification devices.
Implementation Method 1
a first annular ring having a first outer ring and a plurality of first blades disposed in an inner surface of the first outer ring along a circumferential direction, in which the first annular ring has a first electrically connecting piece configured to be connected with one of a positive pole and a negative pole of a power source; a second annular ring having a second outer ring and a plurality of second blades disposed in an inner surface of the second outer ring along a circumferential direction, in which the second annular ring is disposed below the first annular ring, the plurality of second blades and the plurality of first blades are arranged to be staggered, and the second annular ring has a second electrically connecting piece configured to be connected with the other one of the positive pole and a negative pole of a power source
Data Source
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).