Microwave Oven Door Damper Assembly for Quiet Closing
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Solution Overview
Problem
Existing microwave ovens with side-pulling doors generate noise and vibration when closing, compromising user experience and potentially damaging the front panel due to the rigid collision.
Innovation Solution
A damper assembly is integrated into the door lock mechanism of the microwave oven, generating damping force to slow down the door's closing speed and reduce impact on the cabinet, thereby minimizing noise and preventing deformation of the front panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the door is closed rigidly without damping, then the closing action is simple and quick, but noise and vibration are generated and the front panel may deform
Solution Approach 1:
The patent applies beforehand cushioning by installing a damper assembly on the door that provides damping force during the closing process. The damper includes a damping component that generates friction or viscous resistance to slow down the door's closing speed before it reaches the front panel, thereby reducing impact noise and vibration while preventing panel deformation.
Solution Approach 2:
The damper assembly acts as an intermediary element between the door and the front panel. It mediates the closing action by introducing a controlled resistance force that reduces the kinetic energy of the door before contact, thus protecting the front panel from rigid impact while maintaining a relatively simple overall structure.
2Object-affected harmful factors
If the door closing speed is reduced to minimize impact, then noise and vibration are reduced, but the closing time increases
Solution Approach 1:
The damper assembly applies partial damping action - it provides resistance during the closing process but allows the door to close relatively quickly once the damping phase is complete. The damping force is applied partially during the approach phase to reduce impact, rather than continuously throughout the entire closing motion, thus balancing noise reduction with acceptable closing time.
3Object-affected harmful factors
If a damper assembly is added to reduce noise and vibration, then user experience is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The door assembly is segmented by adding a separate damper assembly as an independent component. This segmentation allows the damping function to be added modularly to the existing door structure, making it easier to manufacture and assemble while achieving noise and vibration reduction without completely redesigning the entire door system.
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 solution effectively reduces noise and vibration, prolongs the product's service life, and enhances user experience by buffering the impact force, ensuring a quieter and more reliable operation.
Implementation Method 1
a damper assembly is installed on one side of the cabinet facing the door in a way that it generates damping force to prevent the door from closing when the door approaches to a closed position
Data Source
AI summary
The present disclosure relates to the field of kitchen appliances, and has disclosed a microwave oven, which comprises a cabinet and a door, a damper assembly is mounted on one side of the cabinet facing the door in a way that it produces damping force for preventing the door from closing when the door approaches to a closed position. In the present disclosure, a damper assembly is arranged on one side of the cabinet facing the door; thus, the damper assembly can effectively decrease the speed of collision of the door with the cabinet in the closing process when the door approaches to a closed position, and thereby greatly reduce the noise generated when the door is closed. In that way, not only the grade of the product is improved, but also the user experience and satisfaction is improved.