Rotatable Flap Air Flow Divider for Dual-Compartment Refrigerators
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Solution Overview
Problem
Existing refrigerator compartment systems lack effective mechanisms for adjustable control of air flow between adjacent compartments, limiting the ability to maintain precise temperature differentials.
Innovation Solution
A compartment assembly with a divider unit and a rotatable flap within an air outlet, controlled by an external element, allows for adjustable division of chilled air flow between compartments by rotating the flap to alter the air flow proportions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed divider wall is used to separate compartments, then the structure is simple and reliable, but the air flow distribution between compartments cannot be adjusted
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotatable flap within the air outlet that can be positioned at different angles to dynamically adjust air flow distribution between compartments. The flap rotates about an articulation point on the central wall, allowing the system to transition from a static to a dynamic configuration, enabling adaptable air flow control while maintaining a relatively simple structural form.
2Measurement precision
If electronic controls are used to adjust air flow, then precise control is achieved, but the device complexity and cost increase
Solution Approach 1:
The patent applies the self-service principle by designing a manual control system where the user directly operates the flap through a simple rotatable mechanism. The control element is mounted external to the enclosed area and is operably coupled with the flap to drive rotation thereof, allowing users to manually adjust air flow distribution without requiring electronic sensors, motors, or control circuits, thereby achieving precise control with minimal complexity.
3Adaptability or versatility
If the flap articulation point is positioned far from the air outlet opening, then the control range is increased, but the structural stability decreases
Solution Approach 1:
The patent applies the dimensionality change principle by positioning the articulation point on the central wall in a location that optimizes both control range and structural stability. The articulation point is aligned with respect to the central wall and positioned such that the flap extends in an upstream direction within the air outlet, creating a lever arm that provides sufficient adjustment range while maintaining structural integrity through the rigid central wall mounting.
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 of temperature differentials between compartments by varying the air flow distribution, allowing for equal or unequal air flow areas to maintain desired cooling levels in each compartment.
Implementation Method 1
A flap is disposed within the air outlet and is rotatable about an articulation point aligned with respect to the central wall and with a body of the flap extending in an upstream direction within the air outlet
Data Source
AI summary
A compartment assembly for a refrigerator includes a housing subassembly defining a generally enclosed area, an air outlet in fluid communication with the enclosed area, and a divider unit separating the enclosed area into first and second compartments. The divider unit includes a central wall aligned with the air outlet and exposing respective portions of the air outlet to the first and second compartments. A flap is disposed within the air outlet and is rotatable about an articulation point aligned with respect to the central wall and with a body of the flap extending in an upstream direction within the air outlet. A control element is mounted external to the enclosed area and is operably coupled with the flap to drive rotation thereof.