Cooking apparatus
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Solution Overview
Problem
Cooking apparatuses face challenges in maintaining the surface temperature of their doors at a preset level or less for safety and design purposes, as existing designs often fail to effectively prevent heat leakage and transfer.
Innovation Solution
The cooking apparatus incorporates a door structure with a blocking member positioned between the door duct and inner glass to prevent heat leakage and an insulation member between the door duct and outer glass to prevent heat transfer, utilizing a duct bracket and adhesive member for secure placement, ensuring the surface temperature remains at a preset level or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the door is made with simple glass panels without additional insulation structures, then the device complexity is reduced, but the surface temperature of the door increases beyond the preset level
Solution Approach 1:
The patent implements a multi-layer door structure where the inner glass, door duct, blocking member, and outer glass are nested within each other. The door duct is positioned between the outer glass and inner glass, creating a nested configuration that guides air flow while the blocking member seals the gap between the door duct and inner glass, effectively reducing heat transfer to the outer glass surface.
Solution Approach 2:
The door duct acts as an intermediary component between the inner glass and outer glass. It guides air flow from the cooking room across the door structure, creating a cooling effect on the outer glass surface. The blocking member serves as another intermediary by sealing the gap between the door duct and inner glass, preventing direct heat leakage while allowing the air flow mechanism to function.
2Temperature
If the door structure includes multiple components like door duct and blocking member, then heat leakage is prevented and surface temperature is controlled, but the ease of manufacture decreases
Solution Approach 1:
The door is segmented into distinct functional components: inner glass for heat resistance, door duct for air flow guidance, blocking member for sealing, and outer glass for the visible surface. Each component is manufactured separately and then assembled, allowing for specialized manufacturing processes for each part while maintaining overall functionality.
Solution Approach 2:
The door duct serves multiple functions: it guides air flow from the cooking room across the door, provides structural support for the blocking member, and creates a channel for thermal management. The blocking member simultaneously seals the gap between the door duct and inner glass while providing a mounting surface for adhesive application.
3Object-affected harmful factors
If the door surface temperature is maintained at a low level for safety, then user safety is improved, but the exterior design flexibility is constrained
Solution Approach 1:
The door duct acts as an intermediary cooling mechanism that allows the outer glass surface to remain cool to the touch while the inner glass faces the hot cooking room. This intermediary air flow system enables the use of glass materials that would otherwise be too hot for direct user contact, expanding design options for the exterior surface.
Solution Approach 2:
The door structure implements different thermal characteristics at different locations: the inner glass is designed for high heat resistance facing the cooking room, while the outer glass is designed for low surface temperature for user safety. The door duct and blocking member create localized air flow paths that maintain these different thermal qualities at different surfaces of the same door assembly.
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
This configuration effectively maintains the door surface temperature at a preset level or less, enhancing safety and allowing for a more flexible exterior design by preventing heat leakage and transfer, thereby reducing the need for a handle and improving aesthetic appeal.
Implementation Method 1
a door duct positioned between the outer glass and the inner glass and configured to guide air flowing between the outer glass and the inner glass to outside of the door
Implementation Method 2
a blocking member positioned in an accommodating space formed between the door duct and the inner glass and configured to prevent heat contained in the cooking room from leaking out between the inner glass and the door duct
Data Source
AI summary
A cooking apparatus may include a main body that includes a cooking room in which an opening is formed, the opening configured so that food may be put in and taken out of the cooking room through the opening, and to contain heat for cooking the food, and a door rotatably coupled to the main body and configured to open or close the opening. The door may include an outer glass that forms a front side of the door and faces outside the cooking room, an inner glass positioned behind the outer glass to face the cooking room, a door duct positioned between the outer glass and the inner glass and configured to guide air flowing between the outer glass and the inner glass to outside of the door, and a blocking member positioned an accommodating space formed between the door duct and the inner glass and configured to prevent heat contained in the cooking room from leaking out from between the inner glass and the door duct.