Oven Rear Cooling Flow Path for Larger Cooking Cavity
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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 expanding the cooking cavity's dimensions and providing unobstructed views and improved ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If heating components and cooling systems are arranged in conventional positions, then the cooking cavity size is reduced, but the cooling effectiveness is improved
Solution Approach 1:
The patent introduces a vertical cooling flow path extending from the bottom to the top rear of the cooking cavity, utilizing the vertical dimension to route cooling air behind the magnetron and heating components. This dimensional approach allows cooling without occupying horizontal space, thus maintaining cooking cavity size while improving cooling effectiveness.
Solution Approach 2:
The patent uses a rear panel with integrated cooling flow paths as an intermediary structure. This rear panel serves as a mediator that channels cooling air through vertical passages behind the magnetron and heating components, enabling effective cooling without compromising the cooking cavity's usable space.
2Reliability
If component room is positioned to the side of cooking cavity, then cooling flow is improved, but the usable size of cooking cavity is reduced
Solution Approach 1:
Instead of positioning the component room to the side (horizontal arrangement), the patent utilizes the vertical dimension by routing cooling air flow paths from the bottom rear upward along the rear panel. This vertical arrangement provides adequate cooling flow while maximizing the horizontal usable space of the cooking cavity.
Solution Approach 2:
The patent extracts the cooling flow path from the traditional side-positioned component room arrangement and relocates it to the rear vertical space. By taking out the cooling function and positioning it in the rear vertical dimension, the design improves cooling effectiveness without reducing the cooking cavity's usable horizontal space.
3Device complexity
If conventional heating component arrangement is used, then device complexity is reduced, but venting of heat and odors is hindered
Solution Approach 1:
The rear panel is designed with multi-functionality, serving both as a structural support for heating components and as a integrated cooling flow path. This universal structure enables heat and odor venting through vertical airflow channels while maintaining a simple overall device arrangement, thus resolving the contradiction between simplicity and venting effectiveness.
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 allows for an expanded cooking cavity with increased height and width, effective cooling of critical components, and efficient removal of heat and odors, enhancing the cooking experience and appearance by optimizing the use of space and airflow.
Implementation Method 1
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
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 cooling 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.