Microwave Container Lid Flap with Living Hinge and Plug Seal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional microwave containers have complex mechanisms for opening and closing vent openings, which are cumbersome and inefficient.
Innovation Solution
A microwave container design featuring a lid with a flap hingedly connected by a living hinge, allowing the flap to move between a free-hanging and closed position, with a plug that seals the vent opening, facilitating easy opening and closing with a simple, intuitive mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanisms are used for opening and closing the vent opening, then the vent opening can be sealed, but the structure becomes complicated
Solution Approach 1:
The flap is integrally formed with the lid in a single piece, merging the sealing component with the container lid. This eliminates the need for separate sealing mechanisms while maintaining the vent opening seal function, directly resolving the contradiction between reliability and device complexity
Solution Approach 2:
The flap automatically seals the vent opening when pressed down, using the user's own action to activate the sealing function. The plug on the flap engages with the vent opening automatically without requiring additional mechanisms, achieving reliable sealing through self-service operation
2Device complexity
If a simple hinge mechanism is used, then the structure is simplified, but the sealing effectiveness may be compromised
Solution Approach 1:
The flap is made as a thin, flexible component that can bend at the hinge location while maintaining structural integrity. This flexible design allows simple hinge movement while ensuring the flap can conform to and seal the vent opening effectively, resolving the contradiction between simplicity and sealing reliability
Solution Approach 2:
The hinge is designed with rounded corners and a curved weakened portion, allowing smooth bending motion. This curvature design enables the simple hinge mechanism to flex the flap reliably while maintaining sealing contact with the vent opening, balancing structural simplicity with sealing effectiveness
3Ease of manufacture
If the flap is integrally formed with the lid, then manufacturing is simplified, but the flap needs to be movable
Solution Approach 1:
The material thickness is varied at the hinge location, creating a weakened portion that is thinner than the rest of the flap. This parameter change allows the integral structure to flex easily at the hinge while remaining rigid elsewhere, enabling both simplified manufacturing and smooth operational movement
Solution Approach 2:
The hinge creates a dynamic, movable joint within the otherwise static integral structure. The weakened portion allows the flap to rotate and change position between covering and exposing the vent opening, maintaining ease of operation while preserving the manufacturing simplicity of single-piece construction
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
The design provides a straightforward and efficient method for managing pressure and vapor release during cooking, enhancing user convenience and safety while maintaining an air-tight seal.
Implementation Method 1
The living hinge may have a transverse weakened portion about which the hinge can fold
Implementation Method 2
the plug is plugged into the vent opening
Implementation Method 3
a U-shaped sealing channel disposed adjacent to the hinge and configured to nest on top of a downwardly facing U-shaped sealing channel of the brim of the lid
Data Source
AI summary
A microwave container includes a container body and a lid. The container body has a bottom wall, a sidewall extending upwardly from a periphery of the bottom wall and ending at a rim. The lid has a top wall, a sidewall extending downwardly from a periphery of the top wall and ending at a brim. The lid is formed with a vent opening. The flap includes a proximal portion hingedly connected to the brim of the lid by a living hinge and an outwardly extending distal portion formed with a plug, wherein the flap is movable between a free-hanging position where the flap is hanging freely from the brim of the lid and a closed position where the flap is flipped about the hinge over a side of the lid and the plug is plugged into the vent opening.