Magnetic Dryer Vent Coupling for Self-Aligning Rigid Duct Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for connecting the exhaust circuit from a clothes dryer to the outside of a building face challenges due to obstructed access, leading to restricted airflow, excessive lint buildup, and increased fire risk, as they often require long flexible ducts that are prone to kinking and compression.
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, 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 access for connection, then human access behind the dryer is sufficient, but the duct becomes kinked, compressed, and double-backed causing restricted airflow
Solution Approach 1:
The coupling device is divided into two separate halves: a dryer-side half and a wall-side half. This segmentation allows each half to be installed independently at convenient locations, eliminating the need for long flexible ducts that require human access behind the dryer. The segmented design enables direct connection points to be positioned optimally without compromising airflow.
Solution Approach 2:
The magnetic coupling device acts as an intermediary between the dryer exhaust port and the wall vent opening. Instead of using a long flexible duct as an intermediary, the magnetic coupling provides a direct magnetic field-based connection that transmits force and alignment information across the gap, enabling self-alignment without physical contact or long ductwork.
2Stability of the object's composition
If the dryer is pushed back into position to achieve final installation, then the dryer is properly positioned, but the flexible duct is kinked, compressed, and double-backed
Solution Approach 1:
The magnetic coupling device performs self-alignment and self-engagement when the dryer is pushed into position. The magnetic fields automatically guide the coupling halves into proper alignment and secure the connection without requiring manual intervention or creating duct deformations. This self-service mechanism ensures both proper dryer positioning and maintained airflow integrity.
Solution Approach 2:
The mechanical connection system using long flexible ducts is replaced with a magnetic field-based coupling system. The magnetic attraction force substitutes for mechanical fastening, allowing the coupling to maintain its shape and alignment without physical constraints that would be distorted when the dryer is pushed into position. This eliminates kinking and compression while securing the dryer properly.
3Ease of operation
If conventional flexible duct is used to allow access, then connection can be made, but lint buildup and heat accumulation occur leading to fire risk
Solution Approach 1:
By segmenting the coupling into two separate halves installed at different locations (dryer side and wall side), the invention eliminates the need for long flexible ducts that trap lint and heat. The segmented design allows for shorter, more direct exhaust pathways that reduce lint accumulation and heat buildup, thereby lowering fire risk while maintaining connection capability.
Solution Approach 2:
The invention changes the physical parameters of the exhaust pathway by replacing long, flexible, convoluted ducting with a direct magnetic coupling connection. This parameter change reduces the surface area available for lint buildup and shortens the exhaust path, decreasing heat accumulation and fire risk while preserving the ability to make secure connections.
4Reliability
If a funnel shaped wall attachment is used to guide rigid pipe, then flexible dryer exhaust hose is eliminated, but accurate placement is required to avoid excessive strain on the dryer port
Solution Approach 1:
The mechanical guidance system using a funnel-shaped attachment is replaced with a magnetic field-based alignment system. The magnetic coupling halves generate magnetic fields that automatically guide and align the connection components during installation, eliminating the need for precise manual placement of funnel attachments. This substitution maintains the benefit of rigid pipe elimination while removing the precision placement requirement.
Solution Approach 2:
The invention changes the alignment mechanism from mechanical (funnel geometry requiring precise placement) to magnetic (field-based attraction providing self-alignment). This parameter change allows for greater tolerance in installation positioning while achieving proper alignment, eliminating the need for accurate placement of funnel-shaped attachments and reducing strain on the dryer port.
5Reliability
If pipe is routed above the dryer for manual connection, then connection can be assured, but aesthetic appearance is compromised and vertical duct length increases
Solution Approach 1:
The coupling device is segmented into two halves that can be installed at different locations - one near the dryer and one at the wall vent opening. This segmentation allows the connection to be made at the wall level (maintaining aesthetic appearance) rather than routing pipe above the dryer. The segmented design ensures reliable connection while avoiding the aesthetic compromise of visible vertical ductwork.
6Reliability
If magnetic coupling is used to eliminate flexible hose, then minimal distance to exhaust circuit is maintained, but sealing difficulty arises due to lack of planarity
Solution Approach 1:
The sealing mechanism is changed from mechanical contact (requiring planar surfaces) to magnetic field interaction. The magnetic coupling halves generate magnetic fields that create attractive forces across a small gap, maintaining the minimal distance to the exhaust circuit while eliminating the need for perfectly planar sealing surfaces. This parameter change allows the magnetic coupling to accommodate surface irregularities while maintaining effective sealing and connection.
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 allowing for easier installation and maintenance, while tolerating installation inaccuracies and vibrations, and encourages the use of rigid metal ducts for better airflow and reduced risk of fires.
Implementation Method 1
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
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.