Oven Door Hinge With Damper Cylinder for Quiet Closing
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Solution Overview
Problem
Conventional oven hinges often result in sudden and noisy door closure due to the lack of adequate braking action, leading to uncontrolled movement and potential damage.
Innovation Solution
The hinge design incorporates a helical spring and a damping mechanism, including a gas or fluid damper cylinder and a rocker lever, which work together to provide a controlled closing action, ensuring the door closes gently and silently even without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If elastic elements are used to promote door closing, then door closing speed is improved, but door closure becomes sudden and noisy
Solution Approach 1:
A damping element is introduced as an intermediary component between the elastic element and the door. This damping element acts as a mediator that absorbs and dissipates the excessive energy from the elastic element, transforming the sudden closing force into a controlled, gradual closing motion that reduces noise and prevents damage.
Solution Approach 2:
The damping element is positioned to engage before the door completes its closing motion, providing preemptive cushioning against the sudden impact. This prior cushioning prevents the harmful sudden closure by gradually absorbing the kinetic energy as the door approaches the closed position, eliminating noise and potential damage.
2Ease of operation
If elastic elements apply strong pushing force, then door closing action is improved, but uncontrolled movement and potential damage occur
Solution Approach 1:
The damping element serves as a safety intermediary that limits the maximum force transmitted to the door. It provides a controlled resistance that prevents the elastic element from applying excessive pushing force, thereby maintaining reliability by preventing uncontrolled movement and potential damage to the door or frame.
Solution Approach 2:
The damping element changes the force parameter during the closing motion. It allows high force initially to overcome friction and initiate closing, then progressively increases resistance as the door approaches closure, transforming the force profile from potentially damaging constant high force to a controlled variable force that maintains reliability throughout the motion.
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 ensures a gradual and quiet door closure, protecting the appliance from damage and enhancing user experience by maintaining the door in a controlled position.
Implementation Method 1
the elastic elements which oppose, during a first step, the detachment of the door from the oven supporting frame
Implementation Method 2
a gas or fluid damper cylinder and a rocker lever, which work together to provide a controlled closing action
Data Source
AI summary
The hinge for wings or doors, in particular of electrical appliances, comprises a first box-shaped body, a second box-shaped body, a connecting element between the first and second bodies, and a damper cylinder for applying on the second body an action damping its movement towards the first body.