Refrigerator Filter Unit with Expandable Chamber for Material Swelling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing refrigerator and freezer filter units are limited in flexibility due to their vertical arrangement, which restricts installation positions and can lead to suboptimal water flow, especially when the filter material expands.
Innovation Solution
The filter unit is designed to adapt to changes in volume with integrated length compensation, allowing horizontal flow and increased packing density, using elastic materials for the inlet and outlet and flexible filter disks to accommodate expansion, ensuring consistent performance regardless of position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the filter unit is arranged vertically with gravity ensuring fixed bed flow, then the filter material remains stable, but the installation position flexibility is limited
Solution Approach 1:
The filter unit employs a dynamic flow control mechanism that automatically adjusts the flow direction based on the installation position. The system uses sensors to detect the installation orientation and dynamically redirects water flow to maintain proper flow through the filter material, enabling flexible installation in various positions without compromising filtration performance
Solution Approach 2:
The system changes the flow direction parameter according to the installation position. By detecting the installation orientation and adjusting the flow path accordingly, the system maintains optimal filtration conditions regardless of whether the unit is installed vertically, horizontally, or at intermediate angles
2Quantity of substance
If the filter material is packed densely to increase exchange capacity, then the total exchange capacity increases, but the filter material expansion causes critical conditions in the housing
Solution Approach 1:
The housing incorporates flexible expansion joints and elastic sealing elements that allow the filter housing to expand when the filter material swells during operation. This flexibility prevents structural damage while maintaining the sealed environment necessary for effective filtration
Solution Approach 2:
The system pre-accommodates potential expansion of the filter material by designing the housing with expansion joints and sufficient internal clearance. This beforehand cushioning prevents critical stress conditions from developing when the filter material absorbs water and increases in volume
3Adaptability or versatility
If the filter unit is installed horizontally to improve flexibility, then installation flexibility increases, but water may bypass through media-free areas
Solution Approach 1:
The system dynamically adjusts the flow path based on installation position. When installed horizontally, the flow control mechanism redirects water to flow through the filter material rather than allowing bypass through media-free areas, ensuring consistent filtration effectiveness across different installation orientations
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
This design enhances flexibility in installation, maintains efficient water flow, and increases the ion exchange capacity by allowing horizontal flow and preventing water bypass in media-free areas, ensuring effective filtration regardless of filter material conditions.
Implementation Method 1
the filter space can adapt to a change in volume of the filter material... expansion of the filter material can preferably be compensated for
Implementation Method 2
the inlet and/or outlet consists entirely or partially of a material which has a high coefficient of elasticity, so that the separating membrane is displaced when the filter material expands
Implementation Method 3
the filter unit is flowed through in a horizontal direction
Implementation Method 4
the filter material has or consists of a resin for ion exchange
Data Source
Figure 1
AI summary
The present invention relates to a cooling and/or freezing appliance with a filter unit (10) for filtering water, wherein the filter unit (10) has an inlet (101) for water to be filtered, an outlet for filtered water and a filter material (1) located between the inlet and outlet, wherein the filter material (1) is arranged in a filter chamber (100), wherein the filter chamber (100) is designed in such a way that the filter chamber (100) can adapt to a change in volume of the filter material (1).