Powered Drum Balancer Rail for Washing Machine Vibration Control
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Solution Overview
Problem
Conventional washing machines with manual balancers often fail to correctly offset unbalanced loads during drum rotation, leading to persistent vibration and noise issues.
Innovation Solution
A washing machine with a balancer housing featuring a conductive rail and balancing module that moves automatically upon power supply, using a conductive film and electric wire for power transmission, and a manufacturing method involving injection molding and bonding agents to secure the conductive film, ensuring efficient load balancing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a manual balancer is used in the washing machine, then the device complexity is reduced, but the balancing performance deteriorates because the balancer is not correctly moved to offset unbalanced load
Solution Approach 1:
The patent replaces the manual mechanical balancer system with an automated electromagnetic system. The balancing module includes electromagnetic actuators that automatically position balancing weights based on detected unbalanced load, eliminating the need for manual intervention while achieving precise balancing performance.
Solution Approach 2:
The washing machine's balancing system performs self-adjustment through automated detection and actuation. The system independently identifies unbalanced conditions and repositions balancing weights without requiring user intervention, enabling the device to service itself during operation.
2Ease of manufacture
If electric power is supplied to the balancing module through a conductive rail on a conductive film, then the ease of manufacture is improved, but the manufacturing precision must be maintained for proper electrical connection
Solution Approach 1:
The patent combines the conductive film with the balancer housing through direct attachment, merging two components into an integrated assembly. This reduces the number of separate parts and simplifies the manufacturing process while maintaining reliable electrical connections to the balancing module.
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
The solution effectively minimizes vibration and noise by actively offsetting unbalanced loads during drum rotation, enhancing the stability and performance of the washing machine.
Implementation Method 1
a conductive film, one side of which is attached to an inside of the balancer housing and the other side of which is provided with a conductive rail to supply electric power to the balancing module
Data Source
AI summary
A washing machine includes a balancer to offset unbalanced load generated during rotation of a drum, wherein the balancer includes a balancer housing mounted at the drum, the balancer housing having an annular channel defined therein, a balancing module disposed in the annular channel such that the balancing module is movable when electric power from a power source outside a cabinet is supplied to the balancing module, a conductive film, one side of which is attached to an inside of the balancer housing and the other side of which is provided with a conductive rail to supply electric power to the balancing module, and an electric wire to electrically connect the power source outside the cabinet to the conductive rail.