Concealed Door Dampener Structure for Quiet Appliance Closing
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Solution Overview
Problem
Conventional mechanical hinges in appliances do not provide sufficient resistance to door movement, leading to undesirable noise and potential damage during operation, and incorporating dampeners visible on the appliance's surface detracts from aesthetics.
Innovation Solution
A dampener system with a housing and rotatable shaft, integrated within the appliance's door and cabinet, using ribs and grooves to provide resistance to door movement while maintaining a streamlined design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If dampeners are incorporated into the appliance to provide resistance to door movement, then noise and damage are reduced, but the appliance aesthetics are compromised due to visible bulky components
Solution Approach 1:
The dampener is nested within a housing that is integrated into the appliance structure. The housing contains the dampener components (dampening element, shaft, ribs) within its internal cavity, allowing the dampener to be hidden from external view while still providing its noise-reducing function. This nesting approach resolves the contradiction by concealing the bulky dampener components within the appliance's existing structural envelope.
Solution Approach 2:
The dampener housing is merged with the appliance's structural components (door or cabinet). Rather than being a separate external attachment, the housing is integrated into the appliance's existing structure, combining the dampener function with the structural support function. This merging eliminates the need for additional external components that would compromise aesthetics.
2Ease of operation
If traditional dampeners are used to control door movement, then door pivoting is controlled, but the dampener size increases relative to simple mechanical hinges
Solution Approach 1:
The dampener is segmented into multiple functional components: a dampening element (spring or fluid damper), a shaft for rotational movement, ribs for structural support and damping, and a housing for containment. This segmentation allows each component to be optimized for its specific function while fitting within a compact overall volume. The ribs, for example, provide structural support and damping function with minimal material volume compared to a solid dampener body.
Solution Approach 2:
The dampener utilizes rotational movement around an axis rather than linear movement, effectively using a different dimensional approach to achieve damping. The shaft rotates within the housing, and the ribs are arranged radially around the rotation axis, allowing the dampener to provide control function in a compact cylindrical footprint rather than requiring a larger linear arrangement.
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 damage by providing necessary resistance to door movement while being concealed within the appliance's structure, preserving aesthetics.
Implementation Method 1
The dampener is received into the chamber and is configured for providing resistance against the pivoting movement of the door about the axis of rotation between the open position and the closed position
Data Source
AI summary
A dampener, and an appliance with a dampener, wherein the dampener provides resistance against the movement of a door of the appliance between an open and closed position. The dampener can be incorporated into the door of the appliance in manner than provides strength for proper operation while also allowing for streamlined aesthetics and less bulk.