Surface Wave High-Frequency Heating Apparatus with Adjustable Radiation
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Solution Overview
Problem
Conventional high-frequency heating apparatuses experience uneven heating and power leakage due to the radiation of high-frequency power in directions other than intended, leading to reduced radiation power and difficulty in suppressing uneven heating.
Innovation Solution
A high-frequency heating apparatus that utilizes a surface wave line to propagate high-frequency power as surface waves, with radiation parts disposed on the transmission body to radiate power efficiently and minimize leakage, and an elevating drive mechanism to adjust the distance between the radiation part and the heating target for optimal heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a rotary antenna system is used to radiate high-frequency power, then heating can be applied to the heating target, but high-frequency power leaks in directions other than intended and uneven heating occurs
Solution Approach 1:
A surface wave line is introduced as an intermediary component between the high-frequency power source and the heating target. This surface wave line guides the high-frequency power along a controlled path and radiates it only at the intended radiation part, preventing power leakage and ensuring uniform heating distribution.
Solution Approach 2:
The surface wave line is designed with different functional regions: a transmission body for power propagation and a radiation part for controlled power emission. This local differentiation ensures that high-frequency power is radiated only where needed, eliminating leakage and achieving uniform heating.
2Adaptability or versatility
If the radiation part is positioned at a fixed height, then the structure is simple, but uneven heating occurs due to inability to adapt to different heating target heights
Solution Approach 1:
The radiation part is made movable relative to the heating target through an elevating drive mechanism. This dynamic adjustment capability allows the radiation part to adapt to different heating target heights, ensuring optimal heating performance while maintaining a relatively simple overall structure.
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 suppresses uneven heating by ensuring high-frequency power is radiated from appropriate positions without leakage, allowing for uniform heating of various targets to a desired state.
Implementation Method 1
The transmission body propagates the high-frequency power as surface waves
Implementation Method 2
The high-frequency power applies induction heating to a heating target placed on table 23
Data Source
AI summary
A high-frequency heating apparatus includes a table, a high-frequency power generator, a transmission body, a radiation part, and an elevating drive mechanism. A heating target is to be placed on the table. The high-frequency power generator generates high-frequency power. The transmission body propagates the high-frequency power as surface waves. The radiation part is disposed on the transmission body and radiates the surface waves as high-frequency power. The elevating drive mechanism sets a distance between a top surface of the table or the heating target and the transmission body to not less than a predetermined distance so as to heat the heating target entirely by the high-frequency power. The elevating drive mechanism sets a distance between the top surface of the table or the heating target and the transmission body to not greater than the predetermined distance so as to partially brown the heating target by the surface waves.