Door Hinge with Closing Force to Prevent High-Temperature Heat Release
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Solution Overview
Problem
Conventional door hinges are costly due to multiple components, have complex assembly processes, and are too large for apparatuses with spatial limitations, failing to effectively prevent high-temperature heat release when the door is opened.
Innovation Solution
A door hinge design with a reduced number of components, including a body frame, door frame, internal frame, and rod frame with an elastic member and roller, which applies a closing force to the door, ensuring it opens only with a strong force applied, thus preventing heat release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional door hinge design with multiple springs is used, then the door can be opened and closed, but the material cost is high and the assembly process is complicated
Solution Approach 1:
The patent merges multiple springs into a single spring component that performs the same door opening and closing functions. This consolidation reduces the number of parts, simplifies the assembly process, and lowers material costs while maintaining the required mechanical functionality for door operation.
Solution Approach 2:
The single spring in the invention is designed to perform multiple functions simultaneously - providing both the opening force and closing force for the door, whereas conventional designs require separate springs for each function. This multi-functionality reduces component count and simplifies the overall hinge structure.
2Ease of operation
If conventional door hinge with two springs is used, then the door operation is enabled, but the size of the door hinge is large
Solution Approach 1:
The patent employs a nested structure where the rod frame is positioned inside the internal frame, and the roller is integrated within the rod frame assembly. This nesting arrangement allows multiple functional components to occupy overlapping or concentric spaces, significantly reducing the overall volume of the door hinge while maintaining full door operation capability.
3Ease of operation
If conventional door hinge is used, then the door can be opened, but high-temperature heat is released from inside the apparatus
Solution Approach 1:
The patent applies a closing force mechanism that actively pushes the door toward the closed position, creating a preliminary counter-action against door opening. This closing force ensures the door remains firmly closed under normal conditions, preventing heat release, while still allowing intentional opening when needed by overcoming this closing force.
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 design reduces material costs, simplifies the manufacturing process, minimizes the hinge's length, allows easy opening and closing, and effectively prevents high-temperature heat release by requiring a strong force to open the door, addressing spatial limitations and safety concerns.
Implementation Method 1
a closing force is always applied to the door frame by both an elasticity of the elastic member and a force that the roller contacts the body frame
Implementation Method 2
a roller provided on a second side of the body portion and configured to be rotated in contact with the body frame when the door frame is rotated
Data Source
AI summary
Proposed is a door hinge. More particularly, there is provided a door hinge which is conveniently assembled, has a minimized shape, and above all, enables a closing force to be applied to a door so that when the door is opened, high-temperature heat is inhibited from being released from inside an apparatus on which the door hinge is installed.