Refrigerator Hinge Cover Damping for Heavy Door Closure
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Solution Overview
Problem
Refrigerator doors become excessively heavy due to added features and materials, leading to increased effort for opening and closing, noise, and potential impact issues when closing, which can result in items falling.
Innovation Solution
A damping device is integrated into the hinge cover and door dike, utilizing a cylinder with a piston and oil system to provide a controlled damping force, reducing the speed of door closure and minimizing external exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damping device is added to reduce closing speed and impact, then noise and impact are reduced, but device complexity increases
Solution Approach 1:
The damping device is integrated into the hinge cover structure, merging the damping function with the existing hinge assembly. The hinge cover is modified to include a damping chamber and damping fluid, eliminating the need for a separate damping device and reducing overall system complexity while still providing noise and impact reduction
Solution Approach 2:
The hinge cover is designed to serve multiple functions: it protects the hinge mechanism, provides structural support, and now also houses the damping device. This multi-functionality reduces the need for additional components and simplifies the overall door assembly structure
2Productivity
If a damping device is integrated into the hinge cover, then productivity and assembly workability are improved, but the damping section space is limited
Solution Approach 1:
The damping device is nested within the existing hinge cover structure. The damping chamber is formed inside the hinge cover's internal cavity, and the damping fluid is contained within this nested space. This nesting approach utilizes existing structural space rather than requiring additional volume, thereby improving assembly workability while working within space constraints
3Shape
If heavy materials are used to enhance outer appearance, then aesthetic quality is improved, but door weight increases leading to more effort for opening and closing
Solution Approach 1:
The damping device provides a counteracting force to the door's weight during closing operation. By controlling the closing speed and providing gradual deceleration, the damping mechanism compensates for the heavy door weight, reducing the impact and effort required during door operation while allowing the use of heavier materials for aesthetic purposes
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 damping device ensures smooth door closure, reduces noise and impact, and enhances assembly and maintenance productivity by eliminating the need for additional structures, while maintaining user convenience.
Implementation Method 1
a damping device which is in contact with the door to provide a damping force to the door when the door rotates in a closing direction
Data Source
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AI summary
The present disclosure relates to a refrigerator, and the refrigerator includes a cabinet which has a storage space; a door which opens and closes the storage space; a hinge which is provided in the cabinet and rotatably connects the door; and a hinge cover which shields the hinge, in which the hinge cover is provided with a damping device which is in contact with the door to provide a damping force to the door when the door rotates in a closing direction.