Dishwasher Filter Vent Assembly for Tool-Free Removal
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Solution Overview
Problem
Current dishwashers face inefficiencies and damage due to the need for separate tools to remove filters and additional vents for trapped air, leading to neglect in filter cleaning.
Innovation Solution
A vent system that integrates a shaft with a main shaft passage and a shaft access passage, allowing fluid communication and air escape, coupled with a means to connect the shaft to the sump and filter, eliminating the need for separate fasteners and vents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If separate mechanical fasteners are used to hold the filter in place, then the filter can be securely attached, but the user requires various tools to remove the filter
Solution Approach 1:
The vent is merged with the filter assembly, forming an integrated unit where the vent shaft is positioned within the filter housing. This combination eliminates the need for separate fasteners, as the vent structure itself serves as part of the attachment mechanism, allowing the filter to be securely held while enabling easy removal by simply detaching the integrated vent-filter assembly.
2Reliability
If separate vents are added to allow trapped air to escape from the filter, then air can be vented, but the user must separately remove the vent
Solution Approach 1:
The vent is integrated into the filter assembly, with the vent shaft positioned within the filter housing and the vent passage communicating with the filter interior. This merging of vent and filter into a single integrated component eliminates the need for separate vent removal, reducing device complexity while maintaining reliable air venting functionality during filter cleaning.
3Reliability
If filters require occasional cleaning with tool removal, then pump protection is maintained, but users neglect filter cleaning resulting in inefficiency and damage
Solution Approach 1:
The integrated vent-filter assembly is designed to be easily removable without tools, enabling users to perform filter cleaning themselves without requiring technical assistance or special tools. This self-service design reduces the barrier to regular maintenance, ensuring users actually clean the filter periodically to maintain pump protection and dishwasher efficiency.
Data Source
AI summary
A dishwasher appliance and a vent for coupling a filter and a sump together are provided. The dishwasher appliance includes a cabinet defining a wash chamber for the receipt of articles for washing, and a sump for collection of a fluid from the wash chamber. The sump includes a base wall and a collar extending from the base wall. The dishwasher appliance further includes a filter for filtering the fluid from the wash chamber. The dishwasher appliance further includes a vent coupling the filter and the sump together, the vent comprising a shaft, the shaft including at least one sidewall. The at least one sidewall defines a main shaft passage therein. The shaft further defines a shaft access passage extending through the sidewall and in fluid communication with the main shaft passage. A collar access passage defined in the collar and the main shaft passage are in fluid communication.