Magnetic Vent Assembly for Air Deflector Sealing and Dust Prevention
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Solution Overview
Problem
Air deflectors in blowing devices, such as air conditioners, are unevenly stressed when closed, resulting in non-uniform gaps between the deflector and the frame, allowing external impurities and dust to enter, which can affect the device's operation and service life.
Innovation Solution
A vent assembly with a frame and an air deflector that uses attraction members, such as permanent magnets or a solenoid, to ensure even stress and complete closure, maintaining a uniform gap and preventing dust entry, with additional features like a rotation driving member and sealing strips for enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air deflector is closed using conventional mechanical means, then the closure function is achieved, but the stress distribution becomes uneven causing non-uniform gaps
Solution Approach 1:
The patent replaces the conventional mechanical closure system with a magnetic attraction system. The first attraction member (magnet) on the air deflector interacts with the second attraction member (metal plate) on the frame to provide uniform closing force. This substitution of mechanical contact with magnetic field interaction eliminates uneven stress concentration and achieves uniform gap distribution while maintaining reliable closure.
Solution Approach 2:
The patent changes the physical parameter of the closing force from mechanical contact pressure to magnetic attraction force. By adjusting the magnetic field strength and distribution through proper positioning of the attraction members, the system achieves uniform stress distribution across the air deflector, ensuring consistent gap uniformity while maintaining effective closure.
2Object-affected harmful factors
If the air deflector is closed completely, then dust entry is prevented, but the structure becomes complex requiring additional sealing components
Solution Approach 1:
The patent replaces complex mechanical sealing structures with a magnetic attraction system. The uniform magnetic closing force naturally maintains consistent gaps between the air deflector and frame, preventing dust entry without requiring additional sealing strips or complex mechanical sealing components. The magnetic field itself acts as the sealing mechanism.
Solution Approach 2:
The magnetic attraction system provides self-aligning and self-sealing functionality. The attraction members automatically position themselves to achieve uniform closure, and the magnetic force continuously maintains the sealed state without requiring additional active control mechanisms or complex sealing structures.
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 vent assembly ensures a uniform gap between the air deflector and the frame, preventing dust and impurities from entering, while maintaining a simple structure and cost-effectiveness, and can be integrated with a control circuit for controlled operation.
Implementation Method 1
The first attraction member and the second attraction member are configured to attract each other by a magnetic force
Implementation Method 2
one of the first attraction member or the second attraction member is configured as a metal patch, and another one of the first attraction member or the second attraction member is configured as a permanent magnet
Data Source
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AI summary
A vent assembly for a blowing device includes a frame defining an air outlet therein, and an air deflector pivotally provided in the air outlet and configured to open or close the air outlet. The air deflector is provided with a first attraction member, and the frame is provided with a second attraction member in a corresponding position and configured to attract the first attraction member when the air deflector is closed, such that the air deflector is arranged in a plane where the air outlet is.