Washing Machine with Automatic Weight-Based Transfer Mechanism
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Solution Overview
Problem
Current washing machines require significant user interaction for operation, including sorting, loading, and selecting wash cycles, which can lead to overloading and inefficiencies, particularly challenging for those with busy schedules or physical limitations.
Innovation Solution
A washing machine equipped with a weight sensor and transfer mechanism that automatically moves laundry from a container to the drum when a threshold is reached, along with an RFID reader or optical camera for cycle determination, allowing for fully automated operation without user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a washing machine requires manual user input for loading and cycle selection, then the user can control the washing process, but the level of human interaction required is high and users may overload the machine
Solution Approach 1:
The system performs preliminary actions by automatically monitoring the container weight and initiating the transfer process before the user would normally need to intervene. The weight sensor continuously monitors the container, and when the threshold is reached, the system automatically activates the transfer mechanism, eliminating the need for user assessment and manual loading.
Solution Approach 2:
The washing machine serves itself by automatically detecting when the container is full and initiating the transfer of laundry to the drum without requiring user intervention. The system monitors its own state through weight sensors and autonomously manages the loading process, making the machine self-sufficient in terms of operation.
2Ease of operation
If the washing machine automatically transfers items from container to drum, then user effort is reduced and overloading is prevented, but the device complexity increases due to transfer mechanism
Solution Approach 1:
The patent replaces complex mechanical transfer systems with a simpler pneumatic or vacuum-based system. Instead of using motors, belts, or mechanical conveyors to move laundry, the system uses air pressure differentials created by a vacuum source to draw items from the container into the drum, significantly reducing mechanical complexity.
Solution Approach 2:
The patent introduces a vacuum source as an intermediary medium to facilitate the transfer of laundry. Rather than directly mechanically moving items, the vacuum source creates a pressure differential that causes laundry to be drawn through a conduit into the drum, using air pressure as the mediating force for transfer.
3Reliability
If the washing machine uses weight sensor to determine when to transfer, then overloading is prevented, but the measurement precision requirements increase
Solution Approach 1:
The system uses a predetermined weight threshold that may be set slightly below the maximum safe loading capacity to account for measurement variations. This partial action approach ensures that the transfer is initiated before the drum reaches its absolute maximum capacity, providing a safety margin that compensates for any measurement imprecision.
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
Reduces user effort and prevents overloading by automating the washing process, ensuring tailored wash cycles based on item type and weight, enhancing efficiency and convenience.
Implementation Method 1
a weight sensor for sensing the weight of items in the container
Data Source
AI summary
The disclosure provides a washing machine including a drum, a container for holding items to be washed, a weight sensor for sensing the weight of items in the container, and a transfer mechanism configured to automatically transfer the items from the container to the drum when the weight sensed by the weight sensor reaches a pre-determined threshold. The disclosure also provides a method for washing items using a washing machine.