Disk Humidification Filter Rotation Recovery Using Magnetic Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Air purifiers with disk-type humidification filters often experience abnormal rotation due to foreign objects caught between the filters and the water tank, leading to degraded humidification performance and requiring manual maintenance to resolve.
Innovation Solution
An air purifier system that includes a water tank, a rotational shaft with a humidification filter, a driving source (such as a stepping motor), and a sensing unit with a magnetic sensor to detect the filter's rotational state, allowing the controller to adjust the rotational speed and direction to maintain normal operation and remove foreign objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disk type humidification filter is used to humidify air, then humidification performance is improved, but foreign objects may be caught between the filter and water tank causing abnormal rotation
Solution Approach 1:
A sensing unit detects the rotational state of the humidification filter and provides feedback to the controller. When foreign objects cause abnormal rotation or stopping, the controller receives this feedback and automatically adjusts the rotational speed or direction to resolve the obstruction, maintaining reliable humidification operation.
Solution Approach 2:
The system performs self-diagnosis and self-correction by automatically detecting rotational abnormalities caused by foreign objects and adjusting the motor's rotational parameters to remove the obstruction, eliminating the need for manual maintenance and ensuring continuous reliable operation.
2Productivity
If the humidification filter rotates at high speed to improve humidification efficiency, then productivity is improved, but torque may be insufficient to overcome foreign object obstructions
Solution Approach 1:
The controller dynamically adjusts the rotational speed of the humidification filter based on real-time feedback from the sensing unit. When obstruction is detected, the system changes rotational parameters (speed or direction) to generate sufficient torque to overcome the foreign object, then returns to high-speed operation for efficient humidification.
Solution Approach 2:
The system periodically monitors the rotational state through the sensing unit and makes periodic adjustments to rotational speed or direction when obstructions are detected, allowing the filter to alternate between high-speed humidification and torque-generating obstruction removal cycles.
3Device complexity
If manual maintenance is required to remove foreign objects, then ease of operation is worsened, but device complexity is reduced
Solution Approach 1:
The sensing unit and controller work together to automatically detect and resolve foreign object obstructions by adjusting rotational parameters. This self-service capability eliminates the need for manual maintenance while adding only minimal system components, significantly improving ease of operation.
Solution Approach 2:
The feedback mechanism from the sensing unit enables the system to automatically respond to foreign object obstructions without human intervention. The controller continuously monitors rotational state and makes necessary adjustments, transforming manual maintenance tasks into automated self-correcting operations.
4Reliability
If the humidification filter is stopped to remove foreign objects, then reliability is improved by preventing damage, but loss of time occurs during maintenance
Solution Approach 1:
The system automatically detects and resolves foreign object obstructions by adjusting rotational parameters, preventing filter damage without requiring complete shutdowns or manual intervention. This eliminates maintenance time loss while maintaining operational reliability.
Solution Approach 2:
The sensing unit periodically monitors rotational state and triggers brief corrective actions only when obstructions are detected. The system maintains continuous operation with minimal interruptions, resolving issues through periodic speed or direction changes rather than extended stoppages.
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 system ensures the humidification filter operates normally by adjusting its rotational conditions, enhancing air purifier performance and reducing the need for manual maintenance by automatically addressing foreign object obstructions.
Implementation Method 1
a magnetic sensor installed in the water tank such that the magnetic sensor is adjacent to the magnet, and senses a magnetic field generated by the magnet
Data Source
AI summary
Disclosed is an air purifier able to maintain the normal state of drive of a disk-shaped humidification filter by controlling the state of rotation of the humidification filter. The air purifier can maintain the normal state of drive of the humidification filter by using a stepping motor and the control unit in order to vary the state of rotation of the humidification filter and thereby remove extraneous material when the humidification filter is rotating abnormally due to extraneous material.