Electromagnetic induction heating cooker
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Solution Overview
Problem
Existing cooking appliances have inefficiencies in heating, as they typically heat only one side of the food, making it difficult to cook evenly and requiring frequent orientation changes, and lack the ability to generate steam or efficiently transfer heat, while also being cumbersome to clean.
Innovation Solution
An electromagnetic induction heating appliance with a heating plate that can be coupled to the door, featuring both an infrared heater on top and an induction heating module on the bottom, allowing for simultaneous top and bottom heating, easy food insertion and removal, steam generation through a water storage groove, and improved cleaning by detachable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a heating unit is disposed only on one side of the cooking space, then the device complexity is reduced, but the heating efficiency decreases and heating time increases
Solution Approach 1:
The heating system is segmented into multiple independent heating units positioned at different locations within the cooking space (top, bottom, and side heating units), allowing simultaneous heating from multiple directions to improve heating efficiency without excessive complexity
Solution Approach 2:
The heating approach transitions from single-sided (one-dimensional) heating to multi-sided (three-dimensional) heating by placing heating units at top, bottom, and side positions, enabling food to be heated from all directions simultaneously
2Device complexity
If the door is coupled with the main body via a hinge, then the structural complexity is reduced, but the ease of operation decreases when putting food into the cooking chamber
Solution Approach 1:
The door assembly is segmented into the door body and the heating plate, which can move independently. The heating plate is detachably coupled to the door, allowing it to be pulled out independently to provide better access for food insertion while maintaining the simple hinged door structure
Solution Approach 2:
The heating plate is designed with dynamic movement capability, being detachably coupled to the door so it can be pulled out independently. This dynamic configuration improves ease of food insertion while maintaining structural simplicity
3Device complexity
If only one heating method (infrared or electromagnetic induction) is used, then the device complexity is reduced, but the heat transfer efficiency decreases
Solution Approach 1:
The patent combines two different heating methods (infrared heating and electromagnetic induction heating) into a single cooking appliance, with infrared heaters positioned at the top and bottom and an induction heating plate, creating a composite heating system that improves overall heat transfer efficiency
4Device complexity
If no water storage capability is provided, then the device complexity is reduced, but the ability to generate steam and control moisture decreases
Solution Approach 1:
The heating plate serves multiple functions: it provides electromagnetic induction heating and simultaneously acts as a water storage container through its groove structure. This multi-functionality enables steam generation without adding separate water storage components
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
This design enhances heating efficiency and speed, ensures even cooking, allows for convenient food handling, provides steam for moisture control, and simplifies cleaning, addressing the limitations of existing appliances.
Implementation Method 1
when a metal is placed in a changing magnetic field, an eddy current is generated by electromagnetic induction, such that heat is generated in the metal by the current
Implementation Method 2
an infrared heater or infrared radiator which emits infrared rays in a cooking space S
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An electromagnetic induction heating cooking appliance may include a heating plate comprising a magnetic substance, a cooking space in which the heating plate is accommodated, an electromagnetic induction heater that supplies an induced current to the heating plate, and a heat emitter that emits heat so as to heat food placed on the heating plate. The electromagnetic induction heater and the heat emitter may be disposed on different sides of the cooking space, respectively. The electromagnetic induction heating cooking appliance may further include a water storage groove that generates steam in the cooking space when water is placed in the water storage groove.