Induction Heating Cooling Structure with Air-Flow Path
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Solution Overview
Problem
Induction heating devices face challenges in effectively cooling the working coil and indicator components, leading to potential damage from excessive heat, especially in compact designs with densely arranged high-output coils.
Innovation Solution
The induction heating device incorporates a novel cooling structure with a blowing fan, air-flow path, and light guide configuration to dissipate heat from the working coil and indicator, utilizing a mica sheet to reduce heat transfer and a ferrite core to diffuse the magnetic field, while ensuring efficient air circulation and light emission for temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a blowing fan and air-flow path are introduced to cool the indicator, then the indicator temperature is reduced, but the device complexity increases
Solution Approach 1:
The cooling structure merges multiple functions: the blowing fan cools both the working coil and indicator simultaneously, the air-flow path integrates cooling for multiple components, and the light guide serves both illumination and heat dissipation functions, reducing overall device complexity while maintaining effective cooling
Solution Approach 2:
The air-flow path serves multiple purposes: it cools the working coil, cools the indicator, and the light guide both illuminates the heating status and acts as a heat dissipation path, demonstrating multi-functionality that reduces the need for separate cooling systems
2Productivity
If high-output working coils are used to improve heating performance, then heating efficiency increases, but heat generation and risk of damage increase
Solution Approach 1:
The patent converts the harmful heat generated by high-output working coils into a beneficial cooling flow path. The air-flow path is designed to utilize the temperature difference and create natural convection currents that assist the blowing fan in cooling both the working coil and indicator, turning excess heat into a driving force for the cooling system
Solution Approach 2:
The light guide acts as an intermediary element between the indicator and the external environment. It not only provides visual indication but also serves as a thermal pathway, conducting heat away from the indicator to safer areas, thus mediating the heat transfer process
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 configuration effectively reduces the temperature of the working coil and indicator, minimizing damage and maintaining performance, even in compact designs with high-output coils, thereby enhancing device reliability and efficiency.
Implementation Method 1
a blowing fan located at a first side of a bottom surface of the casing and configured to suction air into the casing from an outside of the casing and to discharge air into the air-flow path
Implementation Method 2
utilizing a mica sheet to reduce heat transfer
Implementation Method 3
a ferrite core to diffuse the magnetic field
Implementation Method 4
an inductive magnetic field is generated around the working coil disposed in the induction heating device. When the flux of the inductive magnetic field passes through a bottom of the loaded object containing the metal loaded on the induction heating device, an eddy current is generated inside of the bottom of the loaded object
Implementation Method 5
an eddy current may be generated in the loaded object made of metal based on a high-frequency power of a predetermined magnitude applied to a working coil
Data Source
AI summary
An induction heating device includes: a casing; a cover plate coupled to a top of the casing and configured to seat an object on a top surface of the cover plate; a working coil located within the casing and configured to heat the object on the top surface of the cover plate; a base plate configured to support the working coil; an indicator board that is located vertically below the base plate and that is spaced apart from the base plate to define an air-flow path between the base plate and the indicator board, where the indicator board includes a plurality of light emitting elements; and a blowing fan located at a first side of a bottom surface of the casing and configured to suction air into the casing from an outside of the casing and to discharge air into the air-flow path.