Laundry handling apparatus
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Solution Overview
Problem
Existing laundry handling apparatuses face challenges in uniformly cleaning the washable filter net due to uneven water distribution and nozzle alignment, leading to incomplete removal of foreign substances, increased pipeline resistance, and reduced cleaning performance.
Innovation Solution
A laundry handling apparatus with a filter unit and nozzle disposition unit that allows relative motion between the filter unit and nozzle disposition unit, ensuring uniform water distribution and efficient removal of foreign substances, featuring a brush for adhering substances and a motor for reversing direction to prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wash water is sprayed directly to the filter net, then foreign substances in the sprayed area are easily removed, but foreign substances in non-sprayed areas remain and cleaning is incomplete
Solution Approach 1:
The filter net is made rotatable relative to the nozzle, transforming the static spraying system into a dynamic one. This rotation ensures that all areas of the filter net pass through the spray zone, achieving uniform cleaning coverage without requiring multiple nozzles or complex positioning systems
Solution Approach 2:
A single nozzle is used to clean the entire filter net surface by combining the nozzle's fixed position with the filter net's rotation. This multi-functional approach allows one nozzle to perform the cleaning task that would otherwise require multiple nozzles positioned at different locations
2Manufacturing precision
If multiple nozzles are used to spray the entire filter net area, then cleaning coverage is improved, but device complexity and nozzle count increase
Solution Approach 1:
Instead of using multiple static nozzles, the system employs a single nozzle combined with a rotatable filter net. The rotation dynamically brings different areas of the filter net into the spray path, achieving uniform water distribution with minimal hardware
Solution Approach 2:
Rather than moving multiple nozzles to cover the filter net area, the system inverts the approach by keeping the nozzle fixed and rotating the filter net. This reversal simplifies the mechanism while maintaining effective cleaning coverage
3Device complexity
If the nozzle and filter are fixed in position, then alignment is simple, but spray angle deviation and water pressure variation cause uneven water supply
Solution Approach 1:
The system transitions from a fixed configuration to a dynamic one where the filter net rotates. This rotation compensates for any initial alignment deviations or spray angle variations, ensuring that all areas of the filter net receive adequate water coverage over time
4Reliability
If foreign substances adhere to the filter net, then filtration function is maintained, but cleaning becomes difficult and substances accumulate
Solution Approach 1:
A brush is introduced to mechanically agitate and scrape the filter net surface during rotation. This mechanical action dislodges adhered foreign substances, preventing accumulation and maintaining cleaning effectiveness while the filter continues to perform its filtration function
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 apparatus effectively cleans the entire filter net area with reduced nozzle count, maintaining low pipeline resistance and high cleaning performance while preventing foreign substance accumulation in the filter driving unit.
Implementation Method 1
a nozzle for spraying cleaning water to automatically remove the foreign substances collected in the filter net
Implementation Method 2
a brush that makes contact with the filter net in a direction crossing a motion track of the filter net
Implementation Method 3
a filter driving unit that allows the filter unit and the nozzle disposition unit to move relative to one another so that the wash water is sprayed onto the entire area of the filter net
Data Source
AI summary
The present invention relates to a laundry handling apparatus provided with a washable filter in an air circulation passage for drying laundry. The laundry handling apparatus according to the present invention comprises: a cabinet, an outer tub disposed inside the cabinet, an inner tub rotatably disposed inside the outer tub, a circulation passage for guiding at least some of the air inside the outer tub to flow out of the outer tub and be resupplied to the outer tub, a fan disposed in the circulation passage so as to move the air, and a filter unit for filtering foreign substances. The filter unit comprises a filter net, which is disposed in the circulation passage so as to collect the foreign substances contained in the moving air, and a filter frame for supporting the filter net. The laundry handing apparatus comprises: multiple nozzles for spraying wash water onto a partial area of the filter net, a nozzle disposition unit, which is disposed in a position spaced apart from the filter net and has the multiple nozzles arranged therein, a nozzle water supply hose, which is connected to the nozzle disposition unit so as to supply the wash water, which is sprayed by the multiple nozzles, and a filter driving unit for allowing the filter unit and the nozzle disposition unit to move relative to one another so that the wash water is sprayed onto the entire area of the filter net.