Induction-Heated Pan and Lid Structure for Even Cooking
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Solution Overview
Problem
Existing cooking utensils face challenges with uneven heating due to the need for multiple heating elements, which increases manufacturing costs and results in bulky products, and existing heat diffusion methods do not fully address the issue of even heating.
Innovation Solution
A cooking utensil design featuring a pan body with a first electromagnetism conductive loop and a first electric conductive heating strip, and a cover body with a second electromagnetism conductive loop and a second electric conductive heating strip, with an induction coil arranged between them to induce electromotive forces and heat both components evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple heating elements are used to achieve dimensional heating, then heating evenness is improved, but manufacturing cost increases and device size becomes large
Solution Approach 1:
The patent combines the functions of multiple heating elements into a single induction coil that simultaneously heats both the pan body and cover body. The induction coil generates an alternating magnetic field that induces eddy currents in both components, eliminating the need for separate heating elements and achieving dimensional heating with a single device.
Solution Approach 2:
The patent introduces conductive loops as intermediary components between the induction coil and the heating elements. These loops are embedded in the pan body and cover body, serving as mediators that convert the magnetic field from the induction coil into localized heating through induced eddy currents, thereby achieving even heating across multiple surfaces.
2Temperature
If traditional heat diffusion layer is added to improve heating evenness, then heat conduction is improved, but the root problem of uneven heating is not fully solved and device complexity increases
Solution Approach 1:
The patent replaces the mechanical heat diffusion layer with an electromagnetic field-based heating system. Instead of relying on thermal conduction through a diffusion layer, the invention uses the induction coil to generate an alternating magnetic field that directly induces eddy currents in the pan body and cover body, converting electromagnetic energy into thermal energy without requiring intermediate heat diffusion materials.
3Temperature
If multiple heating elements are used, then heating coverage is improved, but energy utilization efficiency decreases
Solution Approach 1:
The patent merges multiple heating functions into a single induction coil system that efficiently utilizes electromagnetic energy. The induction coil generates an alternating magnetic field that penetrates both the pan body and cover body simultaneously, inducing eddy currents in both components and converting electromagnetic energy into thermal energy with high efficiency, eliminating energy losses associated with multiple separate heating elements.
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 reduces the need for multiple heating elements, saves costs, enhances the utilization of electromagnetic induction energy, and allows for a thinner, more evenly heated cooking utensil, achieving dimensional and even heating.
Implementation Method 1
an induction coil, arranged between the first electromagnetism conductive loop and the second electromagnetism conductive loop, and corresponding to the first electromagnetism conductive loop and the second electromagnetism conductive loop
Implementation Method 2
when the induction coil energized, induced electromotive forces are produced on the first electromagnetism conductive loop and the second electromagnetism conductive loop at the same time, and the pan body and the cover body can be heated at the same time
Implementation Method 3
a pan body provided with a first electromagnetism conductive loop and a first electric conductive heating strip, and the first electric conductive heating strip and the first electromagnetism conductive loop being connected to form a closed circuit
Data Source
AI summary
A cooking utensil (100) includes a pan body (1), a cover body (2), and an induction coil (3). The pan body (1) is provided with a first electromagnetism conductive loop (11) and a first electric conductive heating strip (12) which are connected to form a closed circuit. The cover body (2) is provided with a second electromagnetism conductive loop (21) and a second electric conductive heating strip (22) which are connected to form a closed circuit. The induction coil (3) corresponds to the first electromagnetism conductive loop (11) and the second electromagnetism conductive loop (21).