Operating method for washing machine
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional washing machines lack the ability to effectively clean delicate materials like wool and silk without causing damage, and struggle to provide a maximized cleaning effect for various types of materials due to limited pulsator rotation patterns.
Innovation Solution
The proposed method involves a pulsator rotation control system that alternates between high-angle and low-angle rotations to generate strong and weak water flows, preventing damage to delicate items while ensuring thorough cleaning, and includes additional modes for standard cleaning cycles and detergent distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pulsator rotates with a single fixed angle pattern, then the device complexity is reduced, but the adaptability to different cleaning materials is insufficient
Solution Approach 1:
The pulsator rotation control is changed from a fixed single-angle pattern to a dynamic multi-angle pattern that varies during operation. The control unit adjusts rotation angles between 0-180 degrees and varies the number of rotations (1-5 rotations) based on different cleaning modes, enabling adaptation to different cleaning materials without increasing mechanical complexity.
Solution Approach 2:
The invention changes the operational parameters of the pulsator rotation, specifically the rotation angle (0-180 degrees) and rotation count (1-5 rotations), to create different cleaning effects. By varying these parameters across multiple modes, the system achieves versatility for different cleaning materials while keeping the mechanical structure simple.
2Productivity
If strong cleaning power is applied continuously, then the cleaning effectiveness is improved, but delicate items may be damaged
Solution Approach 1:
The invention implements periodic alternation between strong cleaning modes (higher rotation angles and counts) and gentle cleaning modes (lower rotation angles and counts). This periodic switching allows strong cleaning power to be applied intermittently for effectiveness while gentler periods prevent damage to delicate items, achieving both cleaning goals.
Solution Approach 2:
The system applies strong cleaning action (excessive rotation) only when needed for specific cleaning modes, rather than continuously. By controlling the pulsator to rotate at higher angles and counts only during appropriate phases or modes, the invention achieves thorough cleaning where needed while avoiding excessive action that would damage delicate items during other phases.
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 approach enhances cleaning effectiveness by distributing detergent uniformly and preventing twisting or clumping of items, ensuring strong cleaning power is applied without causing damage, thereby improving the overall cleaning performance for diverse materials.
Implementation Method 1
water flows are formed by the rotation of a pulsator inside the tub or both the tub and pulsator to perform cleaning
Implementation Method 2
it may cause rubbing due to a relative speed of cleaning objects against water or rubbing between cleaning objects
Implementation Method 3
a detergent may be put into the washing machine to remove contaminants in cleaning objects through the chemical action of the detergent
Data Source
AI summary
The present invention relates to an operation method of a washing machine for controlling the rotation of a pulsator to enhance cleaning performance, there is provided a method of operating a washing machine having a pulsator rotatably provided in a tub, and the method may include a first cleaning mode having a first process of rotating the pulsator in one direction at a first angle and then rotating it in the other direction at a second angle around the rotation shaft; and a second process of rotating the pulsator in the one direction at a third angle and then rotating it in the other direction at a fourth angle around the rotation shaft, wherein the first angle is greater than the third angle, and the second angle is greater than the fourth angle, and the second angle is greater than the third angle.