Integrated Electric Field Filter for Leak-Safe Air Purifiers
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Solution Overview
Problem
Traditional air purifiers fail to achieve optimal air purification due to poor filtering efficiency and safety concerns, as well as air leakage and insulation issues, resulting from the independence of ionization and filtering assemblies in existing designs.
Innovation Solution
An integrated electric field filter configuration within the air purifier, where the filter frame and grid base are hermetically connected, ensuring power cutoff during filter removal, reducing air leakage, and enhancing safety by eliminating gaps and allowing for easy replacement and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ionization assembly and primary filtering assembly are independent, then the device can perform dedusting and disinfection functions, but the safety performance is reduced due to high voltage exposure when removing the filter
Solution Approach 1:
The patent integrates the ionization assembly and primary filtering assembly into a single integrated electric field filter assembly. The filter frame and grid base are hermetically connected to form an integrated structure, ensuring that when the assembly is removed, the high voltage power supply is automatically disconnected. This merging eliminates the safety hazard of exposed high voltage while maintaining both dedusting and disinfection functions.
2Ease of repair
If the ionization assembly and primary filtering assembly are independent, then the filter can be replaced separately, but air leakage occurs due to gaps between the assemblies
Solution Approach 1:
The filter frame and grid base are hermetically connected to form an integrated sealed structure. This eliminates gaps between separate assemblies, preventing air leakage while maintaining the ability to replace the entire electric field filter assembly as a single unit for easy maintenance.
3Stability of the object's composition
If the ionization assembly is used for long term without replacement, then the structure remains stable, but insulation ability is reduced due to alluvial dust accumulation
Solution Approach 1:
By integrating the ionization assembly with the filter frame in a hermetic structure, the entire assembly can be replaced as one unit. This prevents insulation degradation from dust accumulation, as users can replace the complete assembly when needed, maintaining both structural stability and insulation performance.
4Ease of repair
If the high voltage grid is exposed for maintenance, then the device can be serviced, but potential troubles and safety hazards arise
Solution Approach 1:
The high voltage grid is integrated into the sealed electric field filter assembly. When maintenance is needed, the entire assembly is replaced as a unit, eliminating the need to expose or service the high voltage grid separately. This maintains ease of repair through simple assembly replacement while completely eliminating safety hazards from exposed high voltage.
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 integrated design improves safety performance, reduces air leakage, and maintains effective air filtration and disinfection capabilities while preventing secondary pollution and high voltage discharge risks.
Implementation Method 1
air passes a high voltage electrostatic plate, and then the dust accumulates on the electrostatic plate by high voltage absorption
Implementation Method 2
an ionization assembly engaging with the air blower... produces a first ionizing field between the first control grid and the second control grid, and a second ionizing field between the high voltage grid and the second control grid
Data Source
AI summary
An air purifier includes a shell with an air inlet and an air outlet. An electric field filter, an air passage and a blower are disposed inside the shell. The electric field filter includes a filter frame disposed at the air outlet and a grid base disposed under the filter frame. A filter is provided inside the filter frame. One end of the air passage connects with the grid base and the other end connects with the blower. The blower is disposed at the air inlet. The filter frame and the grid base are integrated as a hermetic whole. Due to the integrated configuration of the filter frame and the grid base, when removing out the electric field filter, the power is cut automatically. This effectively prevents an occurrence of the electroshock, and improves safety performance of the purifier. Furthermore, air leakage can be greatly reduced, for there is no gap between the filter frame and the grid base.