Ice-Making Compartment Airflow Distribution via Segmented Inlets
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Solution Overview
Problem
Airflow within an ice-making compartment is not uniform across ice trays due to their varying locations relative to the inlet, affecting ice freezing efficiency.
Innovation Solution
The design includes a housing with an inlet duct directing air to ice trays at different heights and an outlet duct, along with an arcuate deflector to redirect air from one surface of the ice tray to another, ensuring balanced airflow across multiple ice trays positioned at varying heights within the compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air enters the ice-making compartment via a single inlet, then the structure is simple, but airflow is not uniform over the ice tray
Solution Approach 1:
The inlet is divided into multiple inlet apertures positioned at different locations and heights within the housing. This segmentation allows air to enter from multiple points, creating more uniform airflow distribution across the ice trays at different heights without requiring complex ducting systems.
Solution Approach 2:
Different inlet apertures are positioned at specific locations and heights to provide localized airflow to specific regions of the ice trays. The first inlet aperture is positioned to direct air to the first ice tray, while the second inlet aperture directs air to the second ice tray, ensuring each tray receives appropriate airflow for uniform freezing.
2Quantity of substance
If ice trays are positioned at different heights, then more trays can be accommodated, but airflow distribution becomes non-uniform
Solution Approach 1:
The system transitions from a single-level ice tray arrangement to a multi-level vertical arrangement. By positioning inlet apertures at different heights and using the vertical dimension for airflow distribution, the system can accommodate multiple ice trays at different elevations while maintaining uniform airflow to each tray through strategically positioned inlets.
3Device complexity
If a single inlet aperture is used, then the housing structure is simpler, but ice freezing efficiency decreases due to non-uniform airflow
Solution Approach 1:
The single inlet aperture is segmented into multiple inlet apertures positioned at different heights within the housing. This allows air to be distributed more effectively to multiple ice trays, improving freezing efficiency without requiring complex external airflow control systems.
Solution Approach 2:
The housing itself acts as an intermediary structure that incorporates multiple inlet apertures at different heights. This allows the housing to serve both as the structural enclosure and as the airflow distribution system, eliminating the need for separate complex ducting while improving freezing efficiency.
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 configuration enhances airflow distribution and ice freezing rates by ensuring consistent air exposure across all ice trays, improving the overall efficiency of the ice-making process.
Implementation Method 1
An inlet duct is in fluid communication with the inlet aperture and is configured to direct air toward the first ice tray and the second ice tray
Implementation Method 2
An arcuate deflector is positioned in an upper portion of the housing opposing the inlet duct. The arcuate deflector redirects air from a first surface of the at least one ice tray to a second surface of the at least one ice tray
Implementation Method 3
Airflow within an ice-making compartment may be utilized for freezing water within an ice tray
Data Source
AI summary
An appliance ice-making compartment includes a housing which defines an inlet aperture and an outlet aperture. A first ice tray is disposed at a first height within the housing. A second ice tray is disposed at a second height within the housing where the first height is closer to a top of the housing compared to the second height. The second ice tray is closer to the inlet aperture compared to the first ice tray. An inlet duct is in fluid communication with the inlet aperture and configured to direct air toward the first ice tray and the second ice tray.