High-Frequency Heating Device Electrode Configuration
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Solution Overview
Problem
The existing high-frequency heating devices have room for improvement in terms of electric power efficiency.
Innovation Solution
A high-frequency heating device is designed with a first and second conductor, where a high-frequency power source applies a voltage between them, and a connection path electrically connects the conductors at positions different from their power feeding points, generating an electric field and magnetic fields to enhance heating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a high-frequency voltage is applied between electrodes with an auxiliary electrode, then heating function is achieved, but electric power efficiency is insufficient
Solution Approach 1:
The patent extracts the auxiliary electrode from the traditional three-electrode structure and eliminates it entirely. Instead of using an auxiliary electrode to provide a return path, the invention uses a simple two-electrode configuration where the lower electrode serves as both the heating electrode and the return electrode, thereby simplifying the device structure while improving electric power efficiency
Solution Approach 2:
The patent inverts the traditional role assignment by making the lower electrode serve dual functions: as the electrode that receives high-frequency voltage from the power source and as the return electrode that provides the return path to the power source. This inversion eliminates the need for a separate auxiliary electrode and improves overall electric power efficiency
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 improves electric power efficiency by generating effective electric and magnetic fields for heating, while also providing impedance matching to maintain output power.
Implementation Method 1
a high-frequency power source that is connected to the first conductor and the second conductor and that applies a high-frequency voltage between the first conductor and the second conductor
Implementation Method 2
a connection path that electrically connects the first conductor and the second conductor to each other at a first connection position and a second connection position
Data Source
AI summary
A high-frequency heating device that includes: a first conductor; a second conductor disposed with the first conductor through a space therebetween; a high-frequency power source that is connected to the first conductor and the second conductor and that applies a high-frequency voltage between the first conductor and the second conductor; and a connection path that electrically connects the first conductor and the second conductor to each other at a first connection position and a second connection position. The first connection position is different from a first power feeding position at which the first conductor and the high-frequency power source are connected to each other on the first conductor, and the second connection position is different from a second power feeding position at which the second conductor and the high-frequency power source are connected to each other on the second conductor.