French-Door Rotating Bar Mechanism for Gap Sealing
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Solution Overview
Problem
In French Door Refrigerators (FDR), the gap between the pair of doors is not effectively sealed by a gasket, leading to cold air leakage and restricting the removal of storage containers if they are the same size on both sides, necessitating different sizes for storage compartments.
Innovation Solution
A rotating bar system is integrated into one door, guided by a mechanism that includes a rotating unit, linkage unit, and elastic unit, allowing the bar to rotate and seal the gap between the doors when one door is closed and release the seal when the other door is opened, ensuring the same size storage containers can be used on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotating bar is installed on one door to seal the gap between doors, then the gap sealing is improved, but the removal of storage containers is restricted when both containers are the same size
Solution Approach 1:
The rotating bar is designed to dynamically change its orientation based on door operation status. When the second door is opened, the rotating bar automatically rotates from a horizontal sealing position to a vertical non-interfering position, allowing storage containers to be removed without obstruction while maintaining sealing when doors are closed
2Reliability
If a rotating bar remains in sealing position when one door is opened, then gap sealing is maintained, but storage container removal becomes impossible
Solution Approach 1:
The system adapts its configuration dynamically: when the second door is opened, the rotating bar rotates to a vertical position that clears the path for storage container removal, while when the second door is closed, it returns to horizontal sealing position, enabling flexible use of identical-sized containers on both sides
3Ease of operation
If different sizes of storage containers are arranged in left and right regions, then container removal is enabled, but storage compartment versatility is reduced
Solution Approach 1:
The rotating bar mechanism provides universal functionality that enables the use of identical-sized storage containers on both left and right sides of the refrigerating compartment. The bar's ability to rotate between sealing and non-interfering positions makes the storage compartment flexible and adaptable to various container configurations without requiring asymmetric container sizes
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
The rotating bar system effectively seals the gap between the doors, preventing cold air leakage and allowing for the use of identical-sized storage containers on both sides of the refrigerating compartment, enhancing usability and energy efficiency.
Implementation Method 1
an elastic unit supported by the rotating unit and adapted to allow the linkage unit to be linearly moved and rotated by transmitting elastic force to the linkage unit
Implementation Method 2
a rotating bar rotatably coupled to the first door... When the pair of doors is closed, the rotating bar is rotated parallel to the pair of doors to seal a gap between the pair of doors
Data Source
AI summary
A refrigerator in which a rotating bar installed to one of a pair of doors is rotated when the other door is opened or closed. The refrigerator includes a rotating bar to seal a gap between doors, and a guide device to guide rotation of the rotating bar. The guide device includes a base having a receptacle, a rotating unit mounted in the receptacle and rotated by a rotating shaft, a ramp structure fixed in the receptacle and having a ramp, a linkage unit linearly movably secured to the rotating unit and connected to the rotating bar so as to be linearly moved on the ramp and rotated along with the rotating unit about the rotating shaft, and an elastic unit supported by the rotating unit and adapted to transmit elastic force to the linkage unit to allow the linkage unit to move on the ramp.