Electrostatic dust collecting module an electrostatic air purifier thereof
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Solution Overview
Problem
Existing electrostatic precipitation devices face challenges in quick assembly, uniform electric field distribution, and high material costs, with potential health hazards from ozone generation and conductivity issues in metal electrode plates.
Innovation Solution
The electrostatic precipitation module employs conductive plastic electrode plates made by injection molding with embedded metal conductors, forming interlaced modules for improved uniformity and ease of assembly, along with a safety mechanism for safe voltage discharge, using an anion emitter for enhanced air purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal electrode plates are manufactured by sheet stamping, then conductivity is improved, but assembly complexity increases and burrs cause performance deterioration
Solution Approach 1:
The patent merges multiple electrode plates into a single integrated electrode plate structure. Instead of assembling dozens of separate metal plates, the invention uses one continuous electrode plate that spans the entire purification chamber, eliminating assembly complexity while maintaining conductivity through the integrated metal structure.
Solution Approach 2:
The patent segments the electrode plate into functional zones: a metal electrode plate for conductivity, an insulating layer for electrical isolation, and a conductive coating for dust collection. This segmentation allows each layer to perform its specific function optimally while avoiding the problems of assembling multiple separate metal plates.
2Reliability
If metal electrode plates are used, then conductivity is improved, but ozone generation and ignition risks increase
Solution Approach 1:
The patent uses a composite electrode plate structure consisting of a metal base layer for conductivity, an insulating layer to prevent direct discharge, and a conductive coating for dust collection. This composite structure maintains the electrical conductivity needed for electrostatic precipitation while the insulating layer prevents the high-voltage discharge that causes ozone generation and ignition risks.
Solution Approach 2:
The insulating layer acts as an intermediary between the metal electrode plate and the air/dust particles. It allows the metal to provide conductivity while preventing direct contact between high voltage and the air, thereby eliminating ozone generation and ignition hazards.
3Device complexity
If plastic electrode plates with high conductivity are used, then assembly is simplified, but voltage breakdown and performance deterioration occur
Solution Approach 1:
The patent creates a composite electrode plate with a plastic base providing structural integrity and assembly simplicity, an insulating layer maintaining electrical isolation, and a conductive coating enabling dust collection. This composite structure achieves the assembly simplicity of plastic while preventing voltage breakdown through the insulating and conductive layers.
4Ease of manufacture
If multiple electrode plates are assembled one by one, then manufacturing flexibility is improved, but production time increases
Solution Approach 1:
The patent merges dozens of separate electrode plate assembly operations into a single integrated electrode plate manufacturing process. The一体化 electrode plate is produced as one continuous structure, eliminating the time-consuming step-by-step assembly of multiple separate plates while maintaining manufacturing flexibility through mold design variations.
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 solution simplifies assembly, enhances electric field uniformity, reduces production costs, and improves air purification by ionizing dust particles, while ensuring user safety through safe voltage discharge mechanisms.
Implementation Method 1
an anion emitter is disposed between the front shell and the fan assembly and used for emitting anions to ionize the dust particles in the air flow so that the dust particles are negatively charged
Implementation Method 2
An electrostatic precipitator may form an electric field, and dust particles in air are charged by the corona effect when the dust in air passes through the electric field
Implementation Method 3
Charged dust particles are deflected under stress when passing through the electric field, and are eventually trapped on the electrode plates
Data Source
AI summary
An electrostatic precipitation module includes a plurality of conductive precipitation electrode plates and a plurality of non-precipitation electrode plates. The plurality of precipitation electrode plates are interlacedly distributed along the length of a first connecting rib; the precipitation electrode plates are made from conductive plastic material by injection molding, and a metal conductor is embedded inside the first connecting rib by in-mold injection molding, so that a precipitation electrode plate module is formed; a non-precipitation electrode plate module is formed with a similar structure. After the precipitation electrode plate module and the non-precipitation electrode plate module are assembled, the precipitation electrode plates and the non-precipitation electrode plates form an electrostatic precipitation module. Together they form an electrostatic air purifier using the electrostatic precipitation modules which can be assembled quickly, improves the uniformity of electric field distribution and has excellent electrostatic absorption performance.