Rear-Component Oven Layout for Larger Cavity and Cooling Airflow
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Solution Overview
Problem
Conventional cooking apparatuses face challenges in maximizing the usable size of the cooking cavity due to the placement of heating components and the arrangement of cooling and venting systems, which restricts the cavity's height, width, and depth, and hinders effective cooling and odor removal.
Innovation Solution
The cooking apparatus is designed with a component room located at the rear, utilizing a rack or plate instead of a turntable, and incorporates a cooling fan at the lower portion of the rear space to create an efficient cooling flow path that effectively cools major components like the magnetron and convection heater assembly, while also venting heat and odors through a structured air flow path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If heating components and cooling systems are arranged in a conventional side-position component room, then the cooking cavity size is reduced in height, width, and depth, but the heating and cooling functions are provided
Solution Approach 1:
The component room is repositioned from a conventional side-position to a rear-position arrangement, utilizing the depth dimension of the appliance. This spatial reconfiguration allows the cooking cavity to expand in height and width while maintaining adequate space for heating components and cooling systems at the rear, effectively resolving the contradiction between cavity size and component arrangement complexity
Solution Approach 2:
The interior space is segmented into distinct functional zones: an expanded cooking cavity for food preparation and a dedicated rear component room for housing heating components and cooling systems. This segmentation allows each zone to be optimized independently, maximizing the cooking cavity dimensions while providing organized space for complex components
2Temperature
If components are arranged in a conventional component room, then heating functions are provided, but adequate cooling flow and heat venting are difficult to achieve
Solution Approach 1:
The rear component room is designed with localized cooling features including dedicated cooling fans positioned to create targeted airflow patterns around heat-generating components. The cooling system provides localized cooling flow and heat venting capabilities specifically where needed, rather than relying on general convection, thereby achieving adequate temperature control without excessive complexity
Solution Approach 2:
Cooling fans are introduced as intermediary devices to facilitate heat transfer from the heating components to the surrounding air. These fans create controlled airflow paths that efficiently remove heat from the magnetron and convection heater assembly, enabling effective cooling without requiring complex passive cooling structures
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 design expands the cooking cavity's height and width, enhances cooling efficiency, and effectively removes heat and odors, providing a cleaner appearance and improved utility while protecting heat-sensitive surfaces from overheated air.
Implementation Method 1
incorporates a cooling fan at the lower portion of the rear space to create an efficient cooling flow path that effectively cools major components like the magnetron and convection heater assembly
Implementation Method 2
venting of heat and cooking odors from the cooking cavity
Data Source
AI summary
A cooking apparatus is provided. The cooking apparatus includes a cooking cavity, an upper space formed above the cooking cavity, lateral side spaces formed to at opposite lateral sides of the cooking cavity, a rear space formed behind the cooking cavity, and a lower space formed below the cooking cavity. A fan provided in the rear space generates a cooling flow that cools components housed in the rear space. A cooling flow path extends from the rear space and into the upper space and lateral side spaces. Flow from the upper space enters the door to cool the door and is exhausted through a lower portion of the door. Flow from the lateral side spaces, which includes an exhaust flow from the cooking cavity, is guided to the lower space and exhausted. In this manner, the cooking apparatus can be completely cooled and cooking odors and heat appropriately exhausted by the cooling fan positioned in the rear space.