Drum Washer Drive Modes for Gentle and High-Detergency Washing
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Solution Overview
Problem
Conventional drum washing machines are inadequate for washing delicate clothes and items with poor resistance to mechanical force, as they generate excessive mechanical stress due to differing rotation speeds between the drum and the stirring body, leading to potential damage.
Innovation Solution
A drum washing machine with a control system that allows the drum and stirring body to operate in multiple driving forms, including synchronized rotation, differential rotation, and free rotation of the stirring body, enabling tailored washing modes for various types of laundry to minimize mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the drum and stirring body rotate at different rotation speeds to improve detergency, then the washing effectiveness is improved, but the mechanical force applied to delicate clothes increases causing potential damage
Solution Approach 1:
The patent implements dynamic switching between different driving forms (first driving form with different rotation speeds for strong detergency, second driving form with synchronized rotation for gentle washing, and third driving form with free rotation for delicate items). The control part dynamically selects the appropriate driving form based on the washing mode and fabric type, allowing the system to adapt its mechanical action characteristics to match the specific washing requirements.
2Device complexity
If a fixed driving form is used in the drum washing machine, then the structure is simple, but the adaptability to different types of washings is reduced
Solution Approach 1:
The patent makes the driving part multi-functional by enabling it to operate in three different driving forms: first driving form (differential rotation) for standard washing with high detergency requirements, second driving form (synchronized rotation) for gentle washing of delicate fabrics, and third driving form (free rotation) for extremely delicate items. The control part selects the appropriate driving form based on the washing mode, allowing a single device to handle diverse washing requirements without requiring multiple separate machines.
Data Source
AI summary
A drum washing machine capable of performing washing applicable to various washings is provided. The drum washing machine includes: an outer tank provided in a shell; a drum, which is provided in the outer tank and configured to rotate with a horizontal shaft or an inclination shaft inclining relative to a horizontal direction as a center; a driving part, configured to be operated in a first and second driving form, the first driving form refers to a form in which the drum and a rotating body are enabled to rotate at different rotation speeds, the second driving form refers to a form in which the drum and the rotating body are enabled to rotate integrally at a same rotation speed; a control part, configured to control actions of the driving part.