Refrigerator Door Water Filter Recess for Easy Replacement
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Solution Overview
Problem
The placement of water filters in refrigerators, typically at the bottom or back, makes them difficult to access and replace, especially for senior citizens and those with physical disabilities, and requires additional design considerations to prevent freezing, affecting the operation of water dispensers and ice makers.
Innovation Solution
A recess is formed on the side surface of the refrigerator door to house a water filtration system, including a manifold and filter canister, allowing for easy access and replacement without moving the refrigerator, and incorporating a design that prevents freezing by using insulation and a foil heater.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the water filter is placed at the bottom or back of the refrigerator to preserve aesthetic appearance, then the sleek outer appearance is maintained, but the filter becomes difficult to access and replace
Solution Approach 1:
The filter access location is moved from the traditional bottom or back placement to the side surface of the refrigerator door, utilizing an underutilized spatial dimension. This allows the filter to remain concealed during normal operation while being easily accessible through the door opening, resolving the contradiction between aesthetic appearance and filter accessibility.
2Shape
If the water filter is placed in hidden locations, then aesthetic appearance is improved, but the user may not realize the filter is present or needs replacement
Solution Approach 1:
The filter housing incorporates a transparent or translucent portion that allows visual inspection of the filter cartridge without requiring door opening or disassembly. This enables users to monitor filter presence and status while maintaining the concealed aesthetic appearance of the filter system.
3Ease of operation
If the water filter is placed in the fresh food compartment, then filter access is improved, but the filter is obscured from view by items on the shelf
Solution Approach 1:
The filter system is extracted from the interior fresh food compartment space and relocated to the door structure. This eliminates the problem of items obscuring the filter view while maintaining easy accessibility, as the filter is positioned in the door where it is visible through the transparent housing and accessible when the door is opened.
4Shape
If the water filter is placed at the bottom or back requiring movement of the refrigerator, then aesthetic appearance is maintained, but replacement becomes difficult for senior citizens and people with physical disabilities
Solution Approach 1:
The filter access location is moved from the traditional bottom or back placement to the side surface of the refrigerator door, utilizing an underutilized spatial dimension. This allows the filter to remain concealed during normal operation while being easily accessible through the door opening, resolving the contradiction between aesthetic appearance and filter accessibility.
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 easy filter replacement and maintains proper operation of water dispensers and ice makers by providing accessible and concealed filtration, reducing installation complexity and costs.
Implementation Method 1
incorporating a design that prevents freezing by using insulation and a foil heater
Implementation Method 2
incorporating a design that prevents freezing by using insulation and a foil heater
Data Source
AI summary
An appliance includes a main body defining an access opening; a door movably attached to the main body and configured to close the access opening in a closed position, the door comprising a front, a back, a side surface extending from the front to the back, and a recess formed in the side surface, the back facing the main body when the door is in the closed position; and a water filtration system comprising a filter disposed in the recess.