Auxiliary Washing Door Assembly for In-Machine Manual Stain Removal
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Solution Overview
Problem
Conventional washing machines lack a dedicated space for manual washing, making it difficult to completely remove hard dirt or small stains, as they require additional water and separate washing processes outside the machine.
Innovation Solution
A washing machine design incorporating an auxiliary washing unit with a pivotable and separable manual washing space within the door assembly, allowing for independent auxiliary washing without the need for additional water and enabling efficient reuse of washing water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a washing machine has only a main washing space, then the device complexity is low, but the adaptability is insufficient for manual washing of hard dirt or small stains
Solution Approach 1:
The washing machine is segmented into a main washing space and a separate auxiliary washing unit. The auxiliary washing unit is detachably coupled to the door assembly, allowing it to be separated when not needed. This segmentation provides dedicated space for manual washing of hard dirt or small stains while keeping the overall structure manageable through optional configuration.
Solution Approach 2:
The door assembly is designed with multi-functionality by integrating the auxiliary washing unit that can be detachably coupled to it. The door assembly thus serves both as a closure for the main washing space and as a mounting structure for the auxiliary washing unit, enabling the washing machine to perform both automatic washing and manual washing functions.
2Ease of operation
If manual washing is performed outside the washing machine, then the ease of operation for handling hard dirt is improved, but the loss of substance increases due to additional water consumption
Solution Approach 1:
The auxiliary washing unit is merged with the washing machine system by detachably coupling it to the door assembly. This integration allows manual washing to be performed within the washing machine's water reservoir, enabling the reuse of washing water for both main and auxiliary washing operations, thereby reducing overall water consumption while maintaining ease of operation for handling hard dirt.
3Reliability
If the auxiliary washing unit is permanently fixed to the door, then the reliability of the auxiliary washing function is improved, but the ease of repair and maintenance deteriorates
Solution Approach 1:
The coupling between the auxiliary washing unit and the door assembly is designed to be dynamic rather than static. The detachable coupling mechanism allows the auxiliary washing unit to be easily attached and detached, providing reliability when attached while enabling easy access for repair and maintenance when detached, thus resolving the contradiction between functional stability and maintenance accessibility.
4Volume of moving object
If the auxiliary washing unit is integrated into the door assembly, then the volume of the washing machine is efficiently utilized, but the device complexity increases
Solution Approach 1:
The auxiliary washing unit is designed as a separate, detachable component rather than being permanently integrated into the door assembly. This segmentation allows efficient space utilization when the unit is attached to the door, while keeping the overall device complexity manageable through modular design that allows easy separation for manufacturing, assembly, and maintenance.
Data Source
AI summary
Disclosed is a washing machine capable of improving the efficiency of washing and product quality by improving a pivoting structure of a door assembly having a door and an auxiliary washing unit forming an auxiliary washing space. Also, the door and the auxiliary washing unit may be coupled by a locking part so that a user can open and close the door assembly conveniently when manual washing is not needed. When manual washing is needed, the user may release a locked state of the locking part to move the door and the auxiliary washing unit separately.