Vibration-damping component of washing machine
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Solution Overview
Problem
Traditional washing machine vibration-damping components only function during dewatering and lack weighing and sensing capabilities to determine water inflow based on clothing weight and control vibrations.
Innovation Solution
A vibration-damping component comprising a suspender, spring, and electromagnetic sensing device with an electromagnetic coil and magnet, allowing for weight measurement through inductance changes and vibration damping during dewatering by using a sliding cup and spindle-shaped spring to absorb vibration energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional vibration-damping component is used, then vibration damping function is provided, but weighing and sensing functions are missing
Solution Approach 1:
The patent combines the vibration-damping function with weighing and sensing functions into a single integrated component. The suspender assembly includes both the spring for vibration damping and the electromagnetic sensing device for weight detection, allowing one component to perform multiple functions simultaneously.
Solution Approach 2:
The suspender assembly is designed as a multi-functional component that serves as both a vibration-damping element and a weighing/sensing device. The electromagnetic sensing device integrated into the suspender enables weight detection while the spring provides vibration damping, making the component universal in its functionality.
2Measurement precision
If separate weighing and vibration-damping components are used, then weighing function is achieved, but device complexity increases
Solution Approach 1:
The patent merges the weighing function and vibration-damping function into a single suspender assembly. The electromagnetic sensing device is integrated directly into the suspender structure, eliminating the need for separate weighing components and reducing overall system complexity while maintaining measurement precision.
3Measurement precision
If the sleeve slides freely on the suspender, then inductance change detection is enabled, but friction and wear increase
Solution Approach 1:
The patent introduces a sliding cup as an intermediary component between the sleeve and the suspender. The sliding cup provides a guided sliding interface that reduces direct friction and wear between the sleeve and suspender while still allowing the sleeve to move freely enough to enable inductance change detection.
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
Enables pre-weighing of clothing, accurate water inflow control, and improved stability of the dewatering operation by determining clothing weight and adjusting water volume and vibration levels.
Implementation Method 1
the electromagnetic coil and the magnet perform relative motions, thus, magnetic flux in the electromagnetic coil changes, inductance in the electromagnetic coil changes
Implementation Method 2
energy of vibration is absorbed through the deformation of the spring to achieve vibration damping
Implementation Method 3
the spring is arranged between the sleeve and the magnet... energy of vibration is absorbed through the deformation of the spring to achieve vibration damping
Data Source
AI summary
A vibration-damping component of a washing machine comprises a suspender, a spring, a sleeve and an electromagnetic sensing device. The electromagnetic sensing device comprises an electromagnetic coil and a magnet. The electromagnetic coil surrounds the sleeve, the magnet and the spring are arranged in the sleeve and are fixed on the suspender, the sleeve surrounds the suspender in a slidable manner, and the weight of clothing is determined through measuring magnetic flux change of the electromagnetic coil when the sleeve slides on the suspender. In addition, the magnet and the electromagnetic coil make relative displacement, inductance in the electromagnetic coil changes, and water inflow can be detected through detecting the inductance. When dewatering begins, the vibratory magnitude of an outer drum is determined through the inductance change of the electromagnetic coil, and the stability of dewatering operation of the washing machine can be controlled accordingly.