Steam Air Fryer Sealing Structure for Leak-Free Chamber and Door
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Solution Overview
Problem
Existing steam-type air fryers face challenges with airtightness, particularly in sealing the air duct plate to the chamber and between the door frame and door panel, and lack convenience in adding water, leading to potential air leakage and poor user experience.
Innovation Solution
A steam-type air fryer design featuring a hermetically sealed chamber with a first sealing ring between the chamber and air duct plate, and a second sealing ring between the door frame and door panel, along with an openable water tank with a detachable top cover for easy water addition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air duct plate is assembled to the chamber with multiple components (upper core, motor), then the device functionality is improved, but the airtightness deteriorates due to sealing problems
Solution Approach 1:
The air duct plate assembly is segmented into modular components (upper core, motor, air duct plate) that can be assembled separately and then connected to the chamber. This segmentation allows for easier assembly while maintaining sealing through dedicated sealing structures at each connection point.
Solution Approach 2:
A sealing structure acts as an intermediary element between the air duct plate assembly and the chamber. This sealing structure includes sealing rings and sealing surfaces that mediate the connection, ensuring airtightness while allowing the functional components to be properly positioned and connected.
2Reliability
If the door frame and door panel are tightly sealed, then the airtightness is improved, but the ease of operation deteriorates due to difficulty in opening and closing
Solution Approach 1:
The door sealing structure incorporates dynamic elements that allow the sealing force to adjust during door operation. The sealing ring is designed to maintain contact pressure when the door is closed (ensuring airtightness) while allowing easy separation when opening force is applied (ensuring ease of operation).
Solution Approach 2:
The sealing mechanism changes the parameter of sealing force dynamically - high sealing force when the door is closed to prevent leakage, and low sealing force when the door is being opened or closed. This is achieved through the mechanical design of the door assembly that allows controlled deformation of the sealing elements.
3Reliability
If the water tank is fixed and sealed, then the airtightness is improved, but the ease of operation deteriorates due to difficulty in adding water
Solution Approach 1:
The water tank is designed with a pre-arranged removable cap or opening mechanism that allows easy access for water addition. The sealing structure is designed so that the cap can be quickly removed and reattached, maintaining airtightness when closed while enabling convenient water refilling when opened.
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
Ensures reliable airtightness and facilitates easy water addition, enhancing user experience by preventing steam leakage and allowing for quick and easy filling of the water tank.
Implementation Method 1
a heating element for heating water into hot steam and introducing the hot steam into the chamber
Implementation Method 2
a first sealing ring mounted between the chamber and the air duct plate... and a second sealing ring mounted between the door frame and the door panel, so that steam in the chamber will not leak from its opening
Data Source
AI summary
Disclosed is a steam-type air fryer including a main body. A chamber is disposed in the main body. A heating element is disposed in the main body. An air duct plate is disposed on an upper side of the chamber. A hot air wind wheel and a heating tube are disposed in the air duct plate. The steam-type air fryer further includes a door sealing structure, wherein an openable door panel and a door frame are disposed on a side of the air fryer. An opening is provided in a side of the chamber facing the door panel. A second sealing ring is mounted between the door frame and the door panel. The steam-type air fryer further includes a water tank mounted at the top of the steam-type air fryer and including a water tank body and a top cover located on the top of the water tank body.