Twin Laundry Motor Cooling and Non-Overlapping Operation Control
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Solution Overview
Problem
Conventional twin laundry machines face issues with overlapping motor operations and inadequate heat radiation in the second washing unit, leading to vibration, power consumption increases, and potential motor damage due to high-temperature exposure.
Innovation Solution
The twin laundry machine features a control method that synchronizes motor operations to prevent overlap and incorporates an enhanced heat radiation system, including a rotor with an external air supply channel and air inlet structure, to efficiently cool the stator and motor components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If both washing units operate simultaneously, then productivity increases, but vibration and power consumption increase due to overlapping motor operations
Solution Approach 1:
The control method implements periodic operation cycles where the first washing unit operates during a first time period and the second washing unit operates during a second time period that does not overlap with the first time period. This periodic scheduling eliminates simultaneous motor operations, preventing vibration and excessive power consumption while maintaining productivity through sequential processing.
2Adaptability or versatility
If the second washing unit is used for sterilization at high temperature, then sanitation function is improved, but the motor is exposed to high temperature causing potential damage
Solution Approach 1:
The patent extracts the heat generation function from the motor by introducing a separate heater element. The heater provides the necessary high temperature for sterilization without exposing the motor to damaging thermal conditions. This separation allows the second washing unit to perform sterilization functions while the motor operates in a cooler, protected environment.
Solution Approach 2:
The heater acts as an intermediary component that provides thermal energy for sterilization without directly heating the motor. The heater mediates between the power supply and the washing environment, delivering the required high temperature for sanitation while isolating the motor from thermal damage through non-contact heating or localized heating of the water rather than the motor components.
3Volume of moving object
If the second washing unit is made smaller to save space, then space utilization is improved, but heat radiation function becomes inadequate
Solution Approach 1:
The patent merges the heating function with the water treatment process rather than relying on motor heat or separate heating components that would require additional space. The heater is integrated into the water supply or circulation system, allowing efficient heat transfer to the washing water without requiring a large-volume heating chamber or extensive thermal management infrastructure.
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 solution ensures independent operation of washing units, reduces vibration and power consumption, and enhances the reliability and durability of the twin laundry machine by effectively managing heat radiation, preventing motor damage and improving overall performance.
Implementation Method 1
an external air supply channel which is projected from an outer bottom surface of the rotor in a circumferential direction to be recessed from the outer surface of the bottom wall continuously
Data Source
AI summary
The present disclosure relates to a twin laundry machine, more particularly, to a twin laundry machine configured to control mutual motor operations of one or more laundry machines provided therein not to be overlapped with each other, in case the one or more laundry machines are put into operation to perform washing. The present disclosure also relates to a twin laundry machine of which a motor for driving a drum has an improved heat radiation function, more particularly, to a twin laundry machine which includes a sub-washing machine with a smaller size than a normal washing machine and frequent exposure to high temperature usage environments.