Microwave Heating Field Layout for Uniform Object Heating
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Solution Overview
Problem
Conventional microwave heating devices experience heating unevenness in objects being heated.
Innovation Solution
A microwave heating device with a housing, a transmitting portion, a microwave emitting portion, and a conductive member between the transmitting and emitting portions to adjust electric field intensity and uniformize heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If microwaves are emitted using a conventional microwave heating device, then heating function is provided, but heating unevenness occurs in the object to be heated
Solution Approach 1:
A conductive member is introduced as an intermediary between the microwave emitting portion and the object to be heated. This conductive member modifies the electric field distribution by conducting and redistributing the microwave energy, thereby suppressing local heating unevenness without requiring complex control systems or multiple emitting elements.
2Reliability
If a conductive member is provided between the transmitting portion and microwave emitting portion, then heating uniformity is improved, but device complexity increases
Solution Approach 1:
The conductive member changes the electrical parameters (electric field intensity distribution) in the heating space by its presence and material properties. This passive parameter modification achieves uniform heating without requiring active control mechanisms, multiple components, or complex structural arrangements.
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 conductive member divides regions of high electric field intensity, suppressing local heating unevenness and ensuring more uniform heating.
Implementation Method 1
a microwave emitting portion (the planar antenna 130) that is provided outside the housing 110 so as to face the transmitting portion (lower wall portion 112) and emits microwaves
Implementation Method 2
The conductive member divides regions of high electric field intensity, suppressing local heating unevenness and ensuring more uniform heating
Data Source
AI summary
A microwave heating device includes: a housing having a transmitting portion that transmits a microwave; a microwave emitting portion that is provided in a manner facing the transmitting portion outside the housing and configured to emit a microwave; and a conductive member provided between the transmitting portion and the microwave emitting portion.