Auxiliary Door-Mounted Washing Unit for Separate Delicate Loads
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Solution Overview
Problem
Conventional washing machines lack a dedicated space for auxiliary washing of delicate items like socks and undergarments, limiting the efficiency of washing these items separately from the main wash cycle.
Innovation Solution
Incorporation of an auxiliary washing unit within the washing machine, featuring an auxiliary washing space and discharging assembly that allows for independent auxiliary washing, enabling separate washing and drainage of laundry items without interfering with the main wash cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an auxiliary washing unit is added to provide a separate washing space for delicate items, then washing efficiency and functionality are improved, but device complexity increases
Solution Approach 1:
The auxiliary washing unit is nested within the door assembly of the washing machine, utilizing the door's internal space to house the auxiliary washing tub and related components. This nesting approach allows the auxiliary washing function to be integrated into the existing machine structure without requiring additional external space, thereby adding functionality while minimizing increases in overall device complexity.
Solution Approach 2:
The door assembly is designed to serve multiple functions: it acts as both the access door for the main washing chamber and as the housing for the auxiliary washing unit. The discharging assembly within the door can selectively discharge laundry from either the main or auxiliary washing space, providing multi-functional operation that improves versatility without proportionally increasing structural complexity.
2Productivity
If a discharging assembly is provided to transfer laundry between auxiliary and main washing spaces, then washing efficiency is improved, but device complexity increases
Solution Approach 1:
The discharging assembly is merged with the door assembly structure, combining the door's inherent opening/closing motion with the laundry discharge function. The same mechanical structure that opens and closes the door also serves to open the discharge passage from the auxiliary washing unit to the main washing chamber, thereby achieving multiple functions through a single integrated mechanism rather than separate components.
Solution Approach 2:
The discharging assembly utilizes the dynamic opening motion of the door to control laundry transfer. When the door is in the closed position, the discharge passage is sealed; when the door opens, the passage automatically opens to allow laundry to gravity-feed from the auxiliary to the main washing space. This dynamic operation eliminates the need for complex active discharge mechanisms.
3Area of stationary object
If the auxiliary washing unit is integrated into the door assembly, then space utilization is improved, but ease of operation decreases
Solution Approach 1:
The door assembly is segmented into functionally distinct zones: the outer door structure for main chamber access and the inner auxiliary washing unit for delicate item washing. This segmentation allows independent operation of each washing space while maintaining compact integration, enabling users to access and operate the auxiliary unit without interfering with the main washing chamber.
Data Source
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AI summary
Provided is a washing machine including an auxiliary washing unit configured with an auxiliary washing space formed separately from a main washing space formed in a rotating tub, and a discharging assembly by which the auxiliary washing space and the main washing space are selectively in communication with each other. Through such a structure, auxiliary washing may be independently performed, and washing efficiency may be enhanced.