Cooking Appliance Rear Vent Structure for Sealed Cooling
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Solution Overview
Problem
Cooking appliances with combined cooktop and oven designs often allow water or foreign substances to enter the space between the rear surface and rear cover, potentially causing electronic component failure and accidents, and struggle to effectively cool displays on control panels.
Innovation Solution
A cooking appliance design featuring a top plate that connects to the rear cover, forming a sealed upper space and exhaust opening, with a vent grille covering the exhaust opening, and a cooling fan that enhances air flow to cool electronic components and displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the vent grille is disposed at the upper side of the rear surface with an open space between the top plate and rear cover, then exhaust gas can be discharged effectively, but water or foreign substances can enter the electronic components through the gap
Solution Approach 1:
The patent introduces a rear cover as an intermediary component between the vent grille and the electronic components. The rear cover includes a rear space that is separated from the vent grille space by the top plate, creating a protective barrier. This intermediary structure allows exhaust gas to be discharged through the vent grille while preventing water or foreign substances from reaching the electronic components located in the rear space.
Solution Approach 2:
The patent divides the internal space into two distinct regions: a vent grille space for exhaust discharge and a rear space for housing electronic components. The top plate acts as a separator between these two spaces, with the rear cover forming the boundary. This segmentation allows the exhaust function and electronic component protection to occur in separate zones, eliminating the direct exposure of electronics to water ingress risks.
2Device complexity
If the display is disposed on the control panel exposed to hot air flow, then the control panel can be integrated into the door structure, but the display cannot be effectively cooled and may fail due to high temperature
Solution Approach 1:
The patent extracts the display from the hot air flow path by positioning it in a controlled microenvironment within the control panel. The control panel creates a separate space for the display that is isolated from the main hot air circulation in the cooking cavity. This extraction allows the display to remain integrated into the door structure while being protected from excessive heat exposure.
3Ease of repair
If the top plate is separated from the rear cover forming an upper end opening, then assembly and maintenance are easier, but water can enter through the opening and cause electronic component failure
Solution Approach 1:
The patent employs the rear cover as a flexible sealing structure that can be detached for maintenance and reattached to provide protection. The rear cover forms a sealed enclosure with the top plate, creating a water-tight barrier while maintaining accessibility. When assembled, the rear cover prevents water entry; when disassembled, it allows easy access to electronic components for repair and maintenance.
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
Prevents water and foreign substances from entering the electronic components, effectively seals the upper end opening, and increases air current intensity to efficiently cool displays, preventing hot air from affecting them.
Implementation Method 1
a cooling fan that enhances air flow to cool electronic components and displays
Implementation Method 2
the top plate connects to the rear cover, forming a sealed upper space
Implementation Method 3
Exhaust gas generated in the cooking space is suctioned into the exhaust duct connected to the upper portion of the cooking space and flows upward
Data Source
AI summary
A cooking appliance includes a cavity having a cooking space therein, a top plate covering an upper portion of the cavity to form an upper space between the top plate and the cavity, and a rear cover covering a rear of the cavity to form a rear space between the rear cover and the cavity, where an upper end opening is formed between the cavity and the rear cover and opens the rear space upward behind the upper space, and the top plate connects to the rear cover while covering the upper space and the upper end opening from above.