Induction heat cooking instrument
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional induction heating cookers are user-unfriendly due to the lid obstructing the view of the food being cooked and requiring the lid to be detached for container removal.
Innovation Solution
An induction heating cooker design featuring a radiation heater with a supporting roof and power receiving part that allows for inductive power feeding, enabling the cooking container to be placed and removed freely while allowing visibility during cooking, with a configuration that includes a supporting member to prevent vertical overlap and an opening for access to the heating area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a lid is used to cover the cooking container for upper and lower heating, then heating efficiency is improved, but user accessibility and visibility are worsened
Solution Approach 1:
The lid is segmented into a front transparent section and a rear opaque section. The front section allows users to view the cooking food without removing the lid, while the rear section maintains the heating function. This segmentation resolves the contradiction by providing both visibility and heating coverage simultaneously.
Solution Approach 2:
The transparent front section is integrated within the lid structure, creating a nested configuration where the viewing window is embedded in the lid body. This allows the lid to maintain its enclosing function while providing a transparent viewing area, eliminating the need to remove the lid for monitoring.
2Productivity
If a lid is used to cover the cooking container for upper and lower heating, then heating efficiency is improved, but container removal is worsened
Solution Approach 1:
The lid is divided into a front transparent section and a rear opaque section with different structural characteristics. The front section is designed to be removable or flexible, allowing easy container access, while the rear section remains fixed to maintain heating function. This segmentation enables both efficient heating and easy container removal.
3Device complexity
If the power receiving coil is positioned directly under the radiation heater, then structural simplicity is improved, but coil temperature and energy loss are worsened
Solution Approach 1:
The power receiving coil is repositioned from a direct vertical alignment under the radiation heater to an offset position in the rear section of the lid. This spatial rearrangement in three-dimensional space allows the coil to be closer to the heating area for efficient power reception while avoiding direct exposure to the highest temperature zone, thus reducing energy loss and thermal damage risk.
Solution Approach 2:
The lid structure itself acts as an intermediary between the radiation heater and the power receiving coil. The coil is embedded in the lid at a position where it can inductively receive power from the heater through the lid material, which serves as a mediator that enables power transfer while providing thermal protection and structural support.
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
Facilitates easy placement and removal of the cooking container, allows for viewing of the food during cooking, and reduces the temperature of the power receiving coil by diffusing hot air and conducting heat away from the radiation heater.
Implementation Method 1
the power receiving coil is electromagnetically induced by another induction heating coil, and energizes the heating section provided in the lid
Implementation Method 2
The energized induction heating coil inductively heats the cooking container
Implementation Method 3
a radiation heater having a heating element configured to execute radiation heating from above to an object to be heated placed on a cooking container
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An induction heating cooker of this disclosure includes a radiation heater having a heating element which executes radiation heating an object to be heated placed on a cooking container from above, a roof which supports the radiation heater, a power receiving part having a power receiving coil which receives inductively-fed power, a connecting part which electrically connects the power receiving coil of the power receiving part to the heating element of the radiation heater, and a supporting member which extends from the power receiving part to support the roof. The supporting member supports the roof such that at least the heating element and the power receiving part do not vertically overlap, and such that the supporting member has an opening through which the cooking container can access a heating area of the radiation heater.