Hybrid Induction Coil Layout for Uniform Cookware Heating
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Solution Overview
Problem
Current induction coil designs in cooktop systems suffer from non-homogeneous heat distribution, reduced performance with varying cookware sizes, and excessive magnetic field emissions.
Innovation Solution
Implement induction coils with a hybrid shape comprising a rounded and rectangular portion, arranged in a specific pattern to enhance heat distribution and reduce magnetic field emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional circular or rectangular induction coil shapes are used, then the coil structure is simple and easy to manufacture, but the heat distribution becomes non-homogeneous and performance decreases with varying cookware sizes
Solution Approach 1:
The induction coil is divided into multiple discrete heating zones arranged in a specific geometric pattern rather than using a single continuous coil. This segmentation allows each zone to independently contribute to heat distribution, creating more uniform overall heating while maintaining simple individual coil structures that are easy to manufacture.
Solution Approach 2:
The patent employs asymmetric geometric arrangements of the induction coil zones, specifically using patterns such as triangles, squares, or hexagons rather than symmetric circular arrangements. This asymmetric positioning optimizes heat distribution across different cookware sizes and shapes while keeping each individual coil element simple and manufacturable.
2Adaptability or versatility
If induction coils are arranged to cover larger areas, then more cookware sizes can be accommodated, but unheated areas increase and heat distribution becomes non-homogeneous
Solution Approach 1:
The geometric pattern arrangement of induction coil zones creates a universal heating configuration that effectively accommodates multiple cookware sizes and shapes simultaneously. The pattern ensures that whether cookware is small, large, round, or rectangular, it receives adequate and uniform heat distribution from the optimized zone arrangement.
Solution Approach 2:
The patent transitions from considering only the size of individual coil elements to optimizing the spatial arrangement in two dimensions. By configuring coils in geometric patterns (triangles, squares, hexagons) rather than simply enlarging single coils, the system achieves better heat distribution across varying cookware sizes without creating unheated areas.
3Manufacturing precision
If induction coil density is increased to improve heat distribution, then heating performance improves, but magnetic field emissions increase externally
Solution Approach 1:
The patent strategically positions induction coil zones in geometric patterns where the magnetic fields from individual zones interact constructively within the cookware area but destructively in the external environment. This converts the potentially harmful effect of multiple high-density coils into a benefit by reducing external magnetic field emissions through geometric cancellation effects.
Solution Approach 2:
The geometric arrangement of induction coil zones creates a nested or interlocking pattern where zones are positioned to overlap in beneficial ways. This nesting optimizes the use of space, allowing high coil density for improved heat distribution while the geometric configuration ensures magnetic fields cancel externally, reducing harmful emissions.
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
Improves heat distribution and performance across various cookware sizes while minimizing unheated areas and reducing external magnetic field exposure.
Implementation Method 1
induction coil designs that facilitate induction heating
Implementation Method 2
induction coil is provided... facilitates induction heating to the cooktop systems
Implementation Method 3
each induction coil of the first group of induction coils is configured to generate a magnetic field that rotates in a first direction and each induction coil of the second group of induction coils is configured to generate a magnetic field that rotates in a second direction
Data Source
AI summary
Some systems, devices and methods detailed herein provide induction coils and systems that include induction coils for heating one or more cookware devices.