Rotating Dishwasher Spray Module for Larger Rack Space
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Solution Overview
Problem
Conventional dishwashers fail to maximize housing space and cleaning efficiency due to the separate placement of spray arms under racks, leading to reduced capacity and longer cleaning times.
Innovation Solution
A rotatable spray module with a spray nozzle and moment arms that rotates within a fixed angle range, utilizing a reaction force from the cleaning water to spray effectively, eliminating the need for separate motor-driven components and allowing for larger housing space and improved cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spray arms are provided separately under racks in a one-to-one fashion, then cleaning coverage for each rack is improved, but the housing space capacity is reduced and cleaning time is extended
Solution Approach 1:
The patent combines multiple spray functions into a single rotatable spray module that serves multiple racks. Instead of having separate spray arms for each rack, one spray module rotates to provide cleaning water to multiple racks sequentially, thereby increasing housing space capacity while maintaining adequate cleaning coverage.
Solution Approach 2:
The spray module is designed to be rotatable rather than fixed, allowing it to dynamically change its position and serve different racks during the cleaning cycle. This dynamic configuration enables space optimization while ensuring each rack receives appropriate cleaning attention.
2Reliability
If spray arms are provided separately under racks, then each rack receives dedicated cleaning, but the cleaning time period becomes comparatively long
Solution Approach 1:
The rotatable spray module operates by periodically moving between different racks in a systematic sequence. This periodic action allows the single spray module to service multiple racks efficiently, reducing the overall cleaning time compared to having multiple stationary spray arms that would require coordinated operation.
Solution Approach 2:
The single rotatable spray module is designed to perform the cleaning function for multiple racks, making it a multi-functional component. This universality reduces the total number of cleaning components needed and streamlines the cleaning process, thereby reducing cleaning time while maintaining effectiveness.
3Reliability
If multiple separate spray arms are used, then cleaning coverage is improved, but device complexity increases due to multiple components
Solution Approach 1:
The patent merges the functionality of multiple separate spray arms into a single integrated rotatable spray module. This consolidation reduces the number of components, simplifies the device structure, and reduces maintenance requirements while still providing comprehensive cleaning coverage through the rotation mechanism.
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 cleaning efficiency by increasing housing space and reducing cleaning time, providing a better cleaning effect compared to traditional spray arms without the need for additional motorized components, thus simplifying production and maintenance.
Implementation Method 1
A rotatable spray module with a spray nozzle and moment arms that rotates within a fixed angle range, utilizing a reaction force from the cleaning water to spray effectively
Data Source
AI summary
A dishwasher including a cabinet which forms an exterior appearance thereof, the cabinet having a door on one side thereof, which can be opened and closed, a tub provided in the cabinet to form a cleaning object housing space, a rack provided to the tub for securing cleaning objects thereto, a spray module rotatably provided for spraying cleaning water toward the cleaning objects, and a supply flow passage for supplying the cleaning water to the spray module, thereby permitting to provide a housing space larger than an existing dishwasher, and a spray module which can wash cleaning objects with an excellent effect.