refrigerator
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Solution Overview
Problem
Existing refrigerator compartment assemblies lack effective mechanisms for adjustable control of chilled air flow between adjacent compartments, limiting the ability to maintain precise temperature differentials.
Innovation Solution
A compartment assembly with a divider unit that includes a rotatable flap within an air outlet, controlled by an external element, allowing for adjustable distribution of chilled air between compartments by altering the proportions of air flow to each compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed divider is used to separate compartments, then the structure is simple, but the air flow distribution cannot be adjusted between compartments
Solution Approach 1:
The divider unit incorporates a rotatable flap that can change its angular position to dynamically adjust air flow distribution between compartments. The flap rotates about an axis within the air outlet, allowing the system to transition from a static to a dynamic configuration, enabling adjustable air flow proportions without complex mechanical assemblies.
2Measurement precision
If electronic controls are added to adjust air flow, then air flow control precision is improved, but the device complexity and cost increase
Solution Approach 1:
The system employs a self-regulating mechanism where the rotatable flap responds to pressure differentials and air flow conditions to automatically adjust the air flow distribution. The flap's position is determined by the balance of forces from air pressure on either side, eliminating the need for external electronic sensors, actuators, or control systems while maintaining precise air flow regulation.
3Ease of operation
If multiple adjustable mechanisms are added to each compartment, then individual compartment control is improved, but the overall device complexity increases significantly
Solution Approach 1:
The single rotatable flap serves multiple functions by simultaneously controlling air flow distribution to multiple compartments. One flap position adjustment affects the air flow proportion to all downstream compartments, allowing a single control element to perform what would otherwise require multiple separate control mechanisms, thereby reducing overall system complexity while maintaining operational flexibility.
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 precise control over temperature differentials between compartments, allowing for customizable cooling levels by varying the air flow distribution, enhancing the flexibility and efficiency of refrigeration.
Implementation Method 1
the divider unit includes a rotatable flap within the air outlet and controlled by a control element to alter the proportion of air flow into each of the compartments
Data Source
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AI summary
A refrigerator (12) includes a housing subassembly (14) defining a generally enclosed volume (16), an air outlet (18) in fluid communication with the enclosed volume (16), and a divider unit (20) separating the enclosed volume (16) into first and second compartments (22, 24). The divider unit (20) includes a central wall (26) aligned with the air outlet (18) and exposing respective portions (28, 30) of the air outlet (18) to the first and second compartments (22, 24). A flap (32) is disposed within the air outlet (18) and is rotatable about an articulation axis (34) aligned with respect to the central wall (26) and with a body (36) of the flap (32) extending in an upstream direction (38) within the air outlet (18). A control element (40) is mounted external to the enclosed volume (16) and is operably coupled with the flap (32) to drive its rotation.