Magnetic Dryer Vent Coupling to Reduce Kinking and Lint Buildup
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Solution Overview
Problem
Conventional methods for connecting the exhaust circuit from a clothes dryer to the outside of a building often result in restricted airflow, excessive lint buildup, and increased fire risk due to the use of long flexible ducts, which are prone to kinking and compression, especially in confined spaces where access is obstructed by the dryer's rear positioning.
Innovation Solution
A magnetically aligned and engaged coupling system with two separable tubular pieces, one with a female end for the dryer exhaust port and the other with a magnetic end for the wall attachment, allowing self-alignment and self-engagement of the exhaust circuit, eliminating the need for long flexible ducts and enabling the use of rigid metal pipes for improved airflow and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a long piece of flexible duct is used to provide human access behind the dryer, then human access is enabled, but the duct becomes prone to kinking and compression which restricts airflow
Solution Approach 1:
The exhaust circuit is divided into two segments: a rigid pipe segment for the main exhaust path and a short flexible duct segment only where necessary for connection. This segmentation eliminates the need for a single long flexible duct, reducing kinking and compression while maintaining installation flexibility.
Solution Approach 2:
A magnetic coupling device acts as an intermediary between the rigid pipe and the dryer exhaust port. This coupling includes a magnetic component that attaches to the dryer and a receiving component that connects to the rigid pipe, eliminating the need for long flexible ducts while maintaining ease of connection.
2Shape
If the dryer is pushed back into position to achieve proper installation, then aesthetic appearance is improved, but the flexible duct becomes kinked and compressed
Solution Approach 1:
The exhaust circuit is divided into rigid and flexible segments, with the rigid pipe providing structural stability that allows the dryer to be pushed into position without compromising the duct integrity. Only a minimal flexible portion is used where necessary.
Solution Approach 2:
The magnetic coupling serves as an intermediary that absorbs the mechanical stress of pushing the dryer into position, using magnetic attraction to maintain connection while allowing for positional adjustment without kinking the duct.
3Ease of manufacture
If conventional flexible duct is used, then ease of installation is improved, but lint buildup and fire risk increase due to restricted airflow
Solution Approach 1:
The exhaust circuit uses rigid pipe segments for the majority of the path, providing smooth interior surfaces that prevent lint accumulation. Flexible duct is used only in minimal segments where connection flexibility is needed, reducing overall lint trapping.
Solution Approach 2:
The magnetic coupling with its smooth interior surfaces acts as an intermediary that maintains airflow velocity and prevents lint deposition, bridging the connection between the rigid pipe and dryer port without creating restriction points.
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 enhances dryer efficiency, reduces lint accumulation, and increases fire safety by ensuring a secure and efficient exhaust connection, allowing for easier maintenance and installation, even in confined spaces, while minimizing the risk of duct damage and improving airflow.
Implementation Method 1
one having a female end of such an internal diameter as to receive the exhaust port of a clothes dryer, continuous with this end is a length of flexible tube that is linearly extensible, the flexible tube is continuously attached to the other end being fitted with a powerful magnetic material. The second piece of the device also having two ends: one having a magnetic end of an opposite polarity arrangement to that of the first piece so as to powerfully attract and positively mate with the other magnetic end
Data Source
AI summary
A magnetically positioned dryer vent coupling is adapted for use in combination with a clothes dryer. The dryer vent coupling includes a flexible exhaust duct, a first mounting substrate, and a second mounting substrate. The first mounting substrate is located at one end of the flexible exhaust duct and includes a first magnet. The second mounting substrate is adapted for residing proximate one of the dryer exhaust port and wall port, and includes a second magnet. When moved into close proximity, the first and second magnets magnetically attract to one another to self-align and self-assemble the first and second mounting substrates of the dryer vent coupling, such that the first and second mounting substrates create an audible snapping sound when engaged thereby indicating a close magnetic seal at the dryer vent coupling.