Shield Coil Cooking Vessel Control for Precise Induction Heating
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Solution Overview
Problem
Conventional induction cooking systems lack precise temperature control due to the lack of direct temperature feedback and complex interactions between the induction coil and the cooking vessel, requiring extensive hardware redesign and lacking portability and adaptability.
Innovation Solution
A shield coil assembly with control circuitry is integrated into the cooking vessel, allowing for independent temperature control by switching between transparent and shielded states to manage power delivery, using a microcontroller and switching elements to harmonize with induction stoves without hardware redesign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature sensors are embedded within the cooktop to provide temperature feedback, then temperature control precision is improved, but device complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent introduces a shield coil as an intermediary component between the induction coil and the cooking vessel. This shield coil acts as a controllable barrier that can be selectively activated to block or allow electromagnetic energy transmission, enabling temperature control without requiring direct temperature sensing within the cooktop hardware.
Solution Approach 2:
The system uses the cooking vessel itself or a component associated with it (such as a lid or base) to provide the temperature control functionality. By placing the shield coil assembly on or with the cooking vessel, the system eliminates the need for embedded cooktop sensors and achieves self-contained temperature regulation.
2Manufacturing precision
If induction cooking systems are redesigned with precision temperature control hardware, then cooking accuracy is improved, but portability and adaptability to different cooking vessels deteriorate
Solution Approach 1:
The patent divides the temperature control system into a separate, modular shield coil assembly that can be independently attached to different cooking vessels. This segmentation allows the precision control functionality to be portably applied across various vessel types without requiring permanent modification to each vessel or the cooktop.
Solution Approach 2:
The shield coil assembly is designed as a universal component that can be used with multiple types of cooking vessels and induction cooktops. By creating a multi-functional device that works across different platforms, the system maintains adaptability while providing precise temperature control.
3Loss of information
If conventional induction systems are modified to include smart control features, then temperature feedback capability is improved, but ease of manufacture and interoperability deteriorate
Solution Approach 1:
Instead of modifying the induction cooktop to provide temperature feedback, the patent inverts the approach by placing the control mechanism (shield coil) on the cooking vessel side. This inversion allows the system to achieve temperature control functionality while maintaining compatibility with existing induction cooktops and simplifying manufacturing.
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
Enables precise temperature control and adaptability across various cooking vessels, enhancing cooking accuracy and safety without altering the stove hardware, and allowing for portable and modular implementations.
Implementation Method 1
induction heating provides efficient, precise, and rapid heating by generating electromagnetic fields to induce currents directly in the cooking vessel
Implementation Method 2
A shield coil assembly with control circuitry is integrated into the cooking vessel, allowing for independent temperature control by switching between transparent and shielded states
Implementation Method 3
induction heating provides efficient, precise, and rapid heating by generating electromagnetic fields to induce currents directly in the cooking vessel
Implementation Method 4
induction heating provides efficient, precise, and rapid heating by generating electromagnetic fields to induce currents directly in the cooking vessel
Data Source
AI summary
An objective of the present disclosure is to provide an energy storage device which can be stably operated during a power outage. According to one embodiment of the present disclosure, the energy storage device comprises: a battery connected to a solar panel and system power, and storing electric energy received from the solar panel or the system power in a direct current form or outputting stored electric energy to one or more loads; a system relay capable of connecting or blocking a power path connected to the system power; and a load relay capable of connecting or blocking a power path connected to the loads. When an abnormality occurs in the system power, the system relay is shut off to supply electric energy produced by the solar panel or stored in the battery to a preset load. The load relay is shut off when the charging amount of the battery becomes lower than an off reference value.