Electromagnet interface for a water filter assembly
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Solution Overview
Problem
Conventional water filters in refrigerator appliances face issues such as reduced filtering capacity due to clogged pores and bacterial growth, leading to the need for frequent replacement, which can be messy and inconvenient, especially when removing and installing the filters.
Innovation Solution
A water filter assembly with a manifold and magnetic plunger system, where a conducting coil induces a magnetic field to move the plunger, allowing for secure and easy removal and installation of the filter cartridge without the need for twisting or tilting, and includes a water shutoff mechanism to prevent spills.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the water filter is removed from the manifold, then the filter can be replaced, but water spills occur making the process messy and time-consuming
Solution Approach 1:
The patent implements a preliminary water shutoff mechanism that automatically closes the water supply before the filter is removed from the manifold. This preliminary action prevents water leakage during filter replacement, eliminating the need for cleanup and making the process cleaner and faster.
2Ease of operation
If the water filter is twisted or rotated to install or remove, then the filter can be secured to the manifold, but it becomes challenging for some users particularly when filled with water
Solution Approach 1:
The patent replaces the conventional mechanical twisting or rotating mechanism with an electromagnetic coupling system. A magnet in the manifold attracts a magnetic plunger in the filter housing, creating a secure connection without requiring manual twisting or rotation. This substitution makes installation easier while reducing the mechanical complexity of the coupling mechanism.
3Reliability
If the filter cartridge is securely mounted to the manifold, then the connection is reliable, but removal becomes difficult without proper release mechanism
Solution Approach 1:
The patent implements a dynamic electromagnetic coupling system where the magnetic attraction force can be actively controlled. During installation, the magnet attracts the magnetic plunger to secure the filter. During removal, the electromagnetic field is deactivated or reversed, releasing the plunger from the magnet, allowing easy removal without excessive force.
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
Facilitates safe and efficient removal and installation of the filter cartridge, reducing the risk of spills and making the process less time-consuming and user-friendly, while maintaining the filter's effectiveness by ensuring proper replacement intervals.
Implementation Method 1
a conducting coil disposed within the groove at the second end, the conducting coil in electrical communication with a power supply... When the magnetic plunger is in the first position and the filter cartridge is mounted to the manifold... the conducting coil surrounds at least a portion of the magnetic plunger
Data Source
AI summary
A water filter assembly is provided that includes features that facilitate mounting and removal of a water filter cartridge to and from a manifold. In particular, the water filter assembly includes an electromagnet interface that simplifies and aids mounting of the water filter cartridge to the manifold as well as removal from the manifold.