Stirring impeller type washing machine
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Solution Overview
Problem
Existing washing machines face issues with electronic impeller machines being cumbersome for users unfamiliar with electronic operations and mechanical twin-tub machines requiring separate dehydration and washing processes, leading to improper operation and reduced convenience.
Innovation Solution
A stirring impeller type washing machine with a washing assembly and water level assembly, featuring a mode switch, program controller, water level switch, and encoder, allowing for mechanical operation and precise water level control, combining automatic and mechanical functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electronic control is used in impeller washing machines, then automation and modernization are improved, but ease of operation deteriorates for older or less tech-savvy users
Solution Approach 1:
The control system is segmented into two independent parts: a mechanical mode switch for selecting washing programs and an electronic water level controller for precise water management. This segmentation allows users to operate the machine using simple mechanical switching while the electronic system handles complex water level detection and control automatically, resolving the contradiction between automation and ease of operation.
2Ease of operation
If mechanical impeller washing machines are used, then ease of operation is improved, but device complexity increases due to separate dehydration and washing processes
Solution Approach 1:
The patent merges the washing and dehydration functions into a single integrated machine body with one washing tub that can perform both washing and dehydration operations. The mechanical impeller design enables the same tub to handle both washing (with water) and dehydration (without water) functions, eliminating the need for separate tubs and reducing operational complexity while maintaining ease of use.
3Measurement precision
If electronic water level control is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
An encoder is introduced as an intermediary component between the mechanical water level switch and the electronic control system. The encoder converts mechanical position signals into precise digital signals, enabling accurate water level detection while maintaining a relatively simple overall structure. This intermediary component bridges the mechanical and electronic systems efficiently.
4Measurement precision
If multiple control components are added for precise water control, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The water level control system operates autonomously once the user selects a mode via the mechanical switch. The encoder and electronic controller automatically detect water levels, control water injection, and stop water supply when the preset level is reached, without requiring further user intervention. This self-service mechanism maintains ease of operation while achieving precise water level control.
Data Source
AI summary
This application provides a stirring impeller type washing machine including a washing machine body, a washing assembly, and a water level assembly. The washing assembly includes a mode switch and a program controller connected to each other, the program controller has at least two switching positions, each corresponding to a working mode, different rotation orientations of the mode switch correspond to different working modes of the stirring impeller type washing machine. The water level assembly includes a water level sensor, an encoder connected to the water level sensor, and a water level switch and a water injection controller connected to the encoder, wherein a preset water level is adjustable through different rotation orientations of the water level switch. With the stirring impeller type washing machine, the operation and the control become more convenient and sensitive, and the washing degree is higher.