Multi-Panel Oven Door Assembly with Twist-Release Latch Mechanism
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Solution Overview
Problem
Conventional oven door assemblies require full disassembly for maintenance and cleaning, leading to increased maintenance time and risk of damage or injury due to cumbersome glass panels.
Innovation Solution
A door assembly design featuring a handle assembly with a rotatable handle body and latch bar that allows for selective coupling and uncoupling with a latch base, enabling access to the space between panels without full disassembly, thereby facilitating maintenance and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If full disassembly is performed to access the space between panels for cleaning and maintenance, then access to internal components is achieved, but maintenance time increases and risk of damage or injury occurs
Solution Approach 1:
The door assembly is segmented into multiple panels (outer door panel, inner door panel, middle panel) that can be independently separated. The pivotal connection between panels allows the outer panel to be rotated away from the inner panel, creating accessible gaps without requiring complete disassembly of the entire door assembly.
Solution Approach 2:
The door panels are connected through pivotal joints that enable dynamic movement. The outer door panel can be rotated relative to the inner door panel to open maintenance access, and then rotated back to the closed position after maintenance, providing temporary access without permanent disassembly.
2Ease of repair
If full disassembly is performed to access the space between panels, then internal components become accessible, but the risk of damage to glass panels and injury to users increases
Solution Approach 1:
The door is divided into separable panels with the outer panel able to pivot away from the inner panel. This segmentation allows maintenance workers to access the space between panels by simply rotating the outer panel, rather than handling and completely removing large, heavy glass panels that could cause injury or breakage.
Solution Approach 2:
The pivotal connection acts as an intermediary mechanism between the outer and inner panels. It provides a controlled method for separating panels during maintenance while maintaining structural support, reducing the risk of uncontrolled panel movement that could lead to glass breakage or user injury.
3Temperature
If multiple panels are used for insulation, then heat retention is improved, but access to the space between panels for cleaning becomes difficult
Solution Approach 1:
The door assembly maintains multiple insulating panels (outer door panel, middle panel, inner door panel) for heat retention, but incorporates pivotal connections that allow the outer panel to be rotated away from the inner panel. This creates temporary access gaps between panels for cleaning vent holes and removing grease buildup, while preserving the multi-panel insulation structure when closed.
Data Source
AI summary
A door assembly includes an inner door panel and an outer door panel pivotable with respect to the inner door panel, the inner door panel including a latch base. The outer door panel includes a handle assembly including a handle endcap, a handle body rotatable with respect to the handle endcap, and a latch bar connected with the handle body, the latch bar being detachably coupled to the latch base. The outer door panel is rotatable with respect to the inner door panel, such that the outer door panel can be rotated away from the inner door panel.