Laundry Machine Basement Air Path Layout for Low-Noise Drying
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Solution Overview
Problem
Existing laundry drying machines suffer from high flow resistance and noise due to complex air paths with joints, which compromise performance and make them unsuitable for quiet environments.
Innovation Solution
A laundry treating machine with a two-level air path arrangement featuring a conveyor that reverses air flow between levels, utilizing a Venturi effect and a removable, felt-based conveyor system to reduce resistance and noise, while maintaining efficient air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complex air paths with joints are used to change air flow direction in the basement portion, then the air path can be configured to cool operational devices, but high flow resistance is generated compromising machine performance
Solution Approach 1:
The patent introduces a multi-level basement structure with air paths extending at different heights (first level and second level). The conveyor device transfers air between these vertical levels, effectively using the vertical dimension to redirect air flow without requiring complex horizontal joints and bends, thereby reducing flow resistance while maintaining directional control capability
2Reliability
If complex and tortuous cooling conduits are provided in the basement portion, then cooling of operational devices is achieved, but high noise is produced during air circulation
Solution Approach 1:
By utilizing vertical levels in the basement portion and transferring air between levels using a conveyor device, the patent creates a more direct air path that avoids tortuous horizontal routing. This dimensional change reduces air turbulence and flow resistance, thereby significantly reducing noise generation while maintaining effective cooling of operational devices
Solution Approach 2:
The patent extracts the air direction-changing function from complex jointed conduits and implements it through a separate conveyor device operating between vertical levels. This separation simplifies the overall air path configuration, reducing turbulence and noise while preserving the cooling function
3Adaptability or versatility
If multiple conduits with joints are used for air circulation, then air path flexibility is improved, but flow resistance increases reducing air circulation efficiency
Solution Approach 1:
The patent achieves air path flexibility by utilizing vertical separation into multiple levels and using a conveyor device for inter-level transfer. This approach provides configuration adaptability without requiring multiple horizontal joints and bends, thereby maintaining low flow resistance and high air circulation efficiency
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 solution enhances air flow efficiency, reduces noise significantly, allowing the machine to operate quietly and be placed in noise-sensitive areas, improving overall performance and usability.
Implementation Method 1
A further object of the invention is to provide a laundry treating machine producing low noise during working operation compared to laundry treating machines of known type
Data Source
AI summary
A laundry treating machine includes a casing (1) accommodating therein a laundry container (6) and a basement portion (14). The basement portion (14) has seats (18A-18F) adapted to receive machine operational devices (5) and further provides at least one air path. The at least one air path extends over two levels of the basement (14) at different height, and a conveyor (21, 40) is provided for reversing the air path from one of the levels to the other.