System for automatically washing and drying a reusable diaper
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Solution Overview
Problem
Current methods for washing and drying reusable diapers are inefficient and lack a comprehensive solution for effectively removing waste and sanitizing the diapers, often requiring significant water and manual effort.
Innovation Solution
A system comprising a housing with a water reservoir, detergent reservoir, spray nozzle, brush assembly, and drying element, which includes a processing cycle with initial rinse, wash, scrub, rinse, and dry phases, utilizing a fluid distribution system to recirculate water and detergent, and a microwave for sanitizing and drying, integrated with a counterbalanced frame for easy installation and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional washing methods are used for reusable diapers, then significant water is consumed, but washing efficiency is reduced
Solution Approach 1:
The system implements a continuous washing cycle where water is recirculated through the spray nozzle and brush assembly without interruption. The pump continuously circulates water through the detergent reservoir and back to the spray nozzle, maintaining constant washing action throughout the cycle, which improves washing efficiency while reducing overall water consumption.
Solution Approach 2:
The system uses a hydraulic pump to circulate water through the washing mechanism. The pump draws water from the reservoir, passes it through the detergent solution, and delivers it under pressure through the spray nozzle to the diaper. This hydraulic system enables efficient water utilization and recirculation, addressing the contradiction between water consumption and washing efficiency.
2Ease of operation
If manual washing methods are used, then significant manual effort is required, but washing effectiveness is reduced
Solution Approach 1:
The system is designed to perform washing operations automatically without requiring manual intervention. The brush assembly automatically scrubs the diaper, the spray nozzle automatically applies water and detergent, and the pump automatically circulates the washing solution. This self-service mechanism eliminates manual effort while maintaining washing effectiveness through consistent, automated mechanical action.
Solution Approach 2:
The system replaces manual mechanical washing actions with an automated mechanical system. The electric motor drives the brush assembly and pump, substituting human manual effort with automated mechanical components. This substitution maintains washing effectiveness through controlled, repetitive mechanical scrubbing and spraying actions.
3Duration of action of moving object
If drying methods are used that do not sanitize, then drying speed is improved, but sanitation is insufficient
Solution Approach 1:
The system uses microwave radiation to induce phase transition of water from liquid to vapor within the diaper material. The microwave drying element penetrates the diaper and heats the moisture internally, causing rapid evaporation and phase change. This process simultaneously dries the diaper quickly and sanitizes it through high-temperature heating, resolving the contradiction between drying speed and sanitation quality.
Solution Approach 2:
The microwave drying element generates high-temperature conditions that accelerate oxidation processes and kill bacteria and pathogens in the diaper. The thermal energy from microwave heating creates an environment hostile to microorganisms, providing sanitation while the evaporation process removes moisture, achieving both quick drying and effective sanitation.
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 system efficiently removes waste from reusable diapers using minimal water, sanitizes, and dries them effectively, reducing manual effort and water consumption while integrating seamlessly with existing toilet infrastructure.
Implementation Method 1
a spray nozzle (140) arranged within the wash cavity (112) and configured to spray water, from the water reservoir (120), toward the reusable diaper retained on the rack (130)
Implementation Method 2
a brush assembly (150) arranged within the wash cavity (112), includes a brush head (151), and is configured to sweep the brush head (151) across the reusable diaper retained on the rack (130)
Implementation Method 3
a drying element (170) arranged within the housing (110) and configured to dry the reusable diaper retained on the rack (130)
Data Source
AI summary
A system of washing and drying a reusable diaper including a housing defining a wash cavity configured to drain into a toilet bowl, reservoirs for water and detergent, a rack to retain the reusable diaper, a spray nozzle oriented toward the rack. Additionally, the system includes a brush head configured to dislodge waste, a fluid distribution system configured to distribute water from a water supply and detergent from the detergent reservoir, onto the reusable diaper via the spray nozzle, and a drying element configured to dry the reusable diaper retained on the rack. The system can include various configurations of frames to support the housing and allow access to a household water supply.