Gasket Spray Nozzle Layout for Uniform Rinsing in Large Laundry Loads
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Solution Overview
Problem
Conventional laundry treating apparatuses face limitations in uniformly spraying wash water, especially when dealing with large laundry loads, due to the limited capacity of circulation pumps, leading to reduced water pressure and impaired rinsing performance.
Innovation Solution
The apparatus employs a dual spray nozzle system positioned at the gasket between the tub and cabinet, which sprays wash water in a fan shape over a wide area, ensuring uniform coverage and effective cleaning, with the nozzles arranged to spray water in opposite directions to enhance treatment efficiency regardless of drum rotation direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single circulation pump is used to spray wash water, then the device complexity is low, but the uniformity of water distribution deteriorates when laundry load is large
Solution Approach 1:
The single spray system is segmented into multiple spray nozzles arranged in specific patterns (front, rear, left, right positions). Each nozzle targets specific areas of the laundry load, ensuring comprehensive and uniform water distribution across the entire drum volume without requiring multiple pumps.
Solution Approach 2:
The spray system transitions from a single-point or single-direction spray to a multi-dimensional spray configuration. Nozzles are positioned at multiple locations (front, rear, left, right) and oriented to spray in different directions, creating three-dimensional water coverage that uniformly treats large laundry loads.
2Stress or pressure
If the circulation pump capacity is increased to improve water pressure, then the water pressure increases, but the device complexity and cost increase
Solution Approach 1:
Instead of requiring a high-capacity pump to deliver sufficient pressure to all areas, the system uses multiple nozzles strategically positioned to receive water from the pump at optimal pressure points. Each nozzle delivers adequate pressure locally, and the combined effect achieves uniform high-pressure coverage without requiring an excessively large pump.
Solution Approach 2:
The spray nozzles act as intermediaries between the circulation pump and the laundry. They are positioned and oriented to efficiently receive pressurized water from the pump and distribute it across different areas of the drum, maximizing the effectiveness of the pump's output pressure without requiring the pump itself to be oversized.
3Use of energy by moving object
If wash water is sprayed with low pressure, then energy consumption is reduced, but the rinsing performance deteriorates
Solution Approach 1:
The rinsing function is segmented across multiple spray nozzles rather than relying on a single high-pressure source. Each nozzle operates at moderate pressure, reducing individual energy requirements, while the collective action of all nozzles ensures thorough rinsing coverage throughout the laundry load.
Solution Approach 2:
The system achieves effective rinsing not through high pressure in one direction, but through multi-dimensional spray coverage. Nozzles positioned at front, rear, left, and right locations deliver water from multiple angles simultaneously, ensuring that even moderate-pressure spray effectively penetrates and rinses the entire laundry load.
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
This configuration ensures uniform water distribution and improved washing and rinsing performance, even with large laundry loads, by maintaining sufficient water pressure and ensuring effective detergent removal.
Implementation Method 1
a plurality of spray nozzles provided at a lower part of the gasket for spraying wash water upward into the drum
Data Source
AI summary
A laundry treating apparatus includes a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub for receiving laundry, a gasket provided between the cabinet and the tub, a plurality of spray nozzles provided at a lower part of the gasket for spraying wash water upward into the drum, and a pump for pumping wash water to the spray nozzles.