Induction heater cooker
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Solution Overview
Problem
Existing induction heating cookers face safety concerns due to abnormal coupling of the lid and main body, which can lead to explosions or fires, and require additional components and increased production costs for lid coupling detection.
Innovation Solution
An induction heating cooker that uses a magnetic field generated by a working coil to wirelessly supply power to an internal pot and lid, allowing for detection of normal coupling without additional physical components, enabling convenient cooking operations without external power or internal batteries, and ensuring temperature uniformity through multiple heat delivery paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional components (magnetic member and reed switch) are installed for lid locking detection, then lid coupling detection capability is improved, but device complexity and production cost increase
Solution Approach 1:
The induction heating cooker uses its own working coil to generate a magnetic field that serves dual purposes: heating the cooking vessel and detecting lid coupling status. The system detects changes in the magnetic field or electrical characteristics when the lid is coupled, eliminating the need for separate detection components.
Solution Approach 2:
The working coil is designed to perform multiple functions simultaneously: it generates magnetic fields for induction heating and also acts as a sensor for detecting lid coupling status. This multi-functionality reduces the overall component count while maintaining detection capability.
2Reliability
If additional components (magnetic member and reed switch) are installed for lid locking detection, then lid coupling detection capability is improved, but productivity decreases
Solution Approach 1:
The induction heating cooker uses its own working coil to generate a magnetic field that serves dual purposes: heating the cooking vessel and detecting lid coupling status. The system detects changes in the magnetic field or electrical characteristics when the lid is coupled, eliminating the need for separate detection components.
Solution Approach 2:
The detection function is extracted from a separate component system and integrated into the existing working coil system. By removing the need for additional magnetic members and reed switches, the assembly process is simplified and productivity is improved.
3Temperature
If working coil generates magnetic field for heating, then heating function is improved, but magnetic field can be utilized for additional power supply
Solution Approach 1:
The magnetic field generated by the working coil continuously serves dual purposes: heating the cooking vessel and powering electronic components through electromagnetic induction. This continuous dual-use of the magnetic field maximizes energy utilization efficiency.
Solution Approach 2:
The working coil is designed to perform multiple functions simultaneously: it generates magnetic fields for induction heating and also acts as a sensor for detecting lid coupling status. This multi-functionality reduces the overall component count while maintaining detection capability.
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 solution effectively detects normal coupling of the lid and main body without increasing production costs or decreasing productivity, ensuring safe cooking operations and efficient heat distribution.
Implementation Method 1
a working coil, and a heat radiating unit. The lid unit is installed on the top of the main body unit. The lid unit is opened or closed. The inner pot is mounted inside the main body unit. The cover unit has a dual structure of inner and outer covers. The working coil inductively heats an inner pot.
Implementation Method 2
The present disclosure may include a coil part that is provided on the bottom surface of the main body and that supplies electric currents induced by a magnetic field generated by the working coil of the induction heating apparatus to an electronic device in the lid
Data Source
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AI summary
The induction heating cooker according to the present disclosure includes a lid that includes at least one electronic device and that is provided with a first terminal electrically connected to the electronic device, a main body that is provided with a second terminal connected to the first terminal by a rotation-coupling of the lid, an internal pot that is stored in the main body, a coil part which heats the internal pot using external power when the external power is supplied, and to which electric currents are induced by a magnetic field generated by a working coil of an induction heating apparatus when the external power is not supplied, and a power supplying circuit that supplies power to an electronic device provided in the lid through the first and second terminals.