Negative ion generating device and air purifier
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Solution Overview
Problem
Existing negative ion generating devices using conductive fiber brushes face issues with air pollutant condensation and settlement, leading to brush blockage and reduced ion generation efficiency.
Innovation Solution
A negative ion generating device with a cleaning assembly that includes a driving mechanism and a cleaning member capable of moving and contacting or separating from a conductive fiber brush, effectively cleaning debris and preventing blockage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conductive fiber brush is used for negative ion generation, then negative ion generation efficiency is improved, but the brush becomes blocked by condensed and settled air pollutants, reducing service life and efficiency
Solution Approach 1:
The cleaning member is configured to automatically clean the conductive fiber brush without manual intervention. The driving mechanism moves the cleaning member along the brush to remove accumulated pollutants, enabling the system to maintain its own performance and extend service life through self-maintenance.
Solution Approach 2:
The cleaning member performs preliminary cleaning actions before the brush becomes completely blocked. By continuously or periodically removing accumulated pollutants during operation, the system prevents complete blockage and maintains optimal performance throughout the brush's service life.
2Productivity
If air pollutants are allowed to condense and settle on the conductive fiber brush, then negative ion generation efficiency decreases due to blockage, but adding a cleaning mechanism increases device complexity
Solution Approach 1:
The cleaning member serves multiple functions: it cleans the conductive fiber brush, removes accumulated pollutants, and maintains optimal ion generation performance. The driving mechanism integrates movement and cleaning actions, reducing the need for separate complex subsystems while achieving effective brush maintenance.
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 cleaning mechanism enhances the service life and efficiency of the conductive fiber brush by preventing blockage and maintaining optimal negative ion generation.
Implementation Method 1
The negative ion generating device utilizes the high-voltage direct current at the tip to generate high corona and release a large number of electrons at high speed
Implementation Method 2
the electrons are immediately captured by the oxygen molecules in the air, thereby generating negative air ions
Implementation Method 3
the cleaning member being capable of moving under action of the power provided by the driving mechanism, and contacting or separating from the conductive fiber brush during movement
Data Source
AI summary
The present disclosure relates to a negative ion generating device and an air purifier. The negative ion generating device includes a housing, a negative ion assembly, and a cleaning assembly. The negative ion assembly is arranged to the housing, and the negative ion assembly includes a conductive fiber brush. The cleaning assembly is arranged to the housing, the cleaning assembly includes a driving mechanism and a cleaning member, and the cleaning member can move under action of the power provided by the driving mechanism, and contact or separate from the conductive fiber brush during movement.