Battery-Powered Induction Cooker With Smart Driver Switching
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Solution Overview
Problem
Conventional cooking devices are inefficient and limited in their applications due to the structure and arrangement of components, necessitating the development of induction cooking systems and methods that provide efficient and versatile cooking solutions.
Innovation Solution
A battery-powered induction cooking device with a non-ferromagnetic surface, induction cooking coil, battery assembly, heat sink, and circuit board assembly enclosed within a housing, featuring a smart controller and sensors for efficient cooking and charging, allowing for wireless operation and connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cooking devices use gas or electrical elements with indirect heating methods, then the device structure is simple, but the cooking efficiency is low
Solution Approach 1:
The patent replaces conventional gas or electrical resistance heating mechanisms with electromagnetic induction technology. The induction coil generates an oscillating magnetic field that directly induces electrical currents in the cookware, converting electromagnetic energy directly into thermal energy within the cookware itself, thereby eliminating the need for intermediate heating elements and significantly improving cooking efficiency
Solution Approach 2:
The patent changes the fundamental heating parameter from indirect thermal conduction or convection to direct electromagnetic induction. By using a non-ferromagnetic surface with an induction coil beneath it, the system creates an oscillating magnetic field that directly couples with ferromagnetic cookware, enabling efficient wireless energy transfer and direct heating of the cookware base
2Adaptability or versatility
If conventional induction cooking devices are designed with traditional component arrangement, then the manufacturing is straightforward, but the application versatility is limited
Solution Approach 1:
The patent designs the induction cooking device with a universal non-ferromagnetic surface that can accommodate various cookware types and sizes. The induction coil and magnetic field generation system are configured to work with different ferromagnetic materials, enabling the device to handle diverse cooking applications including cooking, heating, and potentially wireless charging of compatible devices, thereby significantly expanding application versatility
Solution Approach 2:
The patent introduces wireless electromagnetic energy transfer as a new dimension of functionality beyond traditional contact-based heating. By incorporating an induction coil that generates magnetic fields capable of wirelessly transferring energy to cookware and potentially other compatible devices, the system expands from single-function cooking to multi-functional wireless energy transfer applications
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 device provides efficient cooking and charging capabilities, energy efficiency, portability, and versatility, with smart features for automatic cooking modes and connectivity options, reducing energy costs and enhancing user convenience.
Implementation Method 1
a coil of copper wire having an alternating electric current passing therethrough positioned below the non-ferromagnetic surface. The resulting oscillating magnetic field wirelessly induces an electrical current in the cooking vessel resulting in heating of the cooking vessel
Implementation Method 2
induction cooking, which uses direct heating of a cooking vessel
Implementation Method 3
a heat sink including a collar having receiving walls spaced radially outward of the battery assembly
Implementation Method 4
a plurality of cooling fins positioned radially outward of the heat sink
Data Source
AI summary
A cooking device includes a housing including a non-ferromagnetic surface and a lower shell positioned below the non-ferromagnetic surface. The cooking device also includes an induction cooking coil, a battery assembly configured to provide power to the induction cooking coil via a circuit board assembly, and a heat sink surrounding the battery assembly and the circuit board assembly. The induction cooking coil, the battery assembly, and the circuit board assembly are enclosed by the housing. The cooking device also includes a controller operatively coupled to the circuit board assembly and configured to switch from usage of a first driver circuit of the circuit board assembly to a second driver circuit of the circuit board assembly to power the induction cooking coil.