Foldable Container with Auto-Unfolding to Reduce Microwave Burn Risk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing method of preparing popcorn in microwave ovens using microwaveable bags poses a risk of burns when consumers need to open the hot, unfolded bag to access the popped popcorn.
Innovation Solution
A foldable container designed to package popcorn kernels and microwave susceptors, which expands automatically into a parallelepiped shape with an open upper base when heated, allowing safe access to the popped popcorn without requiring manual opening of the bag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the popcorn kernels are cooked in a microwaveable bag with susceptors, then the cooking time is reduced and high temperatures are generated, but the unfolded bag contains concentrated residual heat that causes burn risks when opened
Solution Approach 1:
The container is divided into multiple foldable sections (first section with bottom and sides, second section with foldable walls) that can separate and unfold independently. This segmentation allows the heat-generating susceptor to remain in the bottom section while the upper sections unfold to create distance between the heat source and the user's hands, reducing burn risk while maintaining efficient cooking.
Solution Approach 2:
The container transitions from a compact folded state to an expanded three-dimensional parallelepiped structure. This dimensional change increases the vertical distance between the heated susceptor at the bottom and the opening at the top, allowing users to access popcorn from a safer distance while maintaining the high-temperature cooking environment at the base.
2Object-affected harmful factors
If the container is made with foldable sections that unfold automatically, then safe access to popcorn is enabled, but the device complexity increases
Solution Approach 1:
The container's foldable sections are designed to unfold automatically using the force generated during the popcorn popping process itself. The expanding popcorn kernels provide the mechanical energy needed to push the foldable walls outward, eliminating the need for separate mechanisms or user intervention to open the container, thus reducing complexity while maintaining safety.
Solution Approach 2:
The container utilizes the phase transition of popcorn kernels (from dense unpoped state to expanded popped state) as a mechanical force. This natural expansion provides the energy needed to unfold the container structure, converting the popping action itself into the opening mechanism and avoiding additional complex components.
3Volume of moving object
If the container walls are made thin and foldable, then the container can be compact for packaging, but the structural strength is reduced
Solution Approach 1:
The container walls are designed to be dynamically responsive - remaining folded and compact during transport and storage, then automatically unfolding when needed. The foldable sections maintain sufficient strength in their folded configuration for compact packaging while providing structural integrity during the popping process and stable support in the unfolded serving configuration.
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 foldable container ensures safe access to popped popcorn by automatically unfolding and providing an open top, preventing the concentration of residual heat and eliminating the risk of burns during consumption.
Implementation Method 1
microwave susceptors, which are devices that heat up in response to microwave energy, converting the microwave energy into thermal energy to generate radiant heat
Implementation Method 2
The foldable container comprises a construction that allows the container to expand selectively between the folded configuration and the expanded configuration
Data Source
AI summary
A foldable container for use in microwave ovens that comprises a first section that defines a hollow volume; with the first section closed by a second folded section that is adapted to unfold automatically between a folded configuration in a flower pattern and an expanded configuration, providing an open upper base to the unfolded container.