Microwave Treatment Device With Loop Line Transmission
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Solution Overview
Problem
Conventional microwave treatment devices struggle to achieve uniform heating for objects of various shapes, types, and amounts due to limited variability in microwave distribution, which results in inefficient heating and longer cooking times.
Innovation Solution
A microwave treatment device with a loop line transmission structure and multiple radiation parts, where feeding parts are arranged at intervals of a quarter wavelength or less, allowing for selective switching of radiation parts and control of phase differences to achieve desired heating distributions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If phase difference is controlled to change microwave distribution, then uniform heating is achieved, but microwave distribution does not vary significantly and standing wave moves only by half a wavelength
Solution Approach 1:
The patent divides the heating chamber into multiple zones with separate radiation parts (first, second, and third radiation parts) connected via branch parts of the transmission line. This segmentation allows independent control of microwave radiation in different spatial regions, enabling varied microwave distributions for different object shapes and sizes while maintaining uniform heating in each zone.
Solution Approach 2:
The patent implements dynamic switching between multiple radiation parts based on the heating requirements. By selectively activating different radiation parts through the loop line transmission structure, the microwave distribution can be dynamically adjusted to match various object configurations, overcoming the limitation of fixed phase difference control.
2Adaptability or versatility
If multiple radiation parts are operated or stopped to largely vary microwave distribution, then desired heating distribution is achieved, but supplied electric power becomes smaller and cooking time becomes longer
Solution Approach 1:
The patent combines multiple radiation parts into a unified loop line transmission structure where all parts can operate simultaneously or selectively. This merging allows the system to maintain high supplied electric power by utilizing multiple radiation parts together, while still achieving varied microwave distributions by controlling which parts are active, thus reducing cooking time compared to using fewer parts.
Solution Approach 2:
The loop line transmission structure serves multiple functions: it can transmit microwaves to any combination of radiation parts, enable selective switching, and maintain efficient power supply. This multi-functionality allows the system to adapt to various heating scenarios without sacrificing power efficiency or increasing cooking time.
3Productivity
If multiple radiation parts are used to achieve desired heating distribution, then heating efficiency is improved, but device complexity increases
Solution Approach 1:
The patent employs a nested structure where branch parts are integrated into the loop line transmission structure. The first, second, and third branch parts are embedded within the continuous loop line, creating a compact design that reduces spatial complexity while maintaining the functionality of multiple radiation parts for improved heating efficiency.
4Loss of energy
If feeding parts are arranged closely to transmit microwave efficiently, then power loss is reduced, but microwave penetration between feeding parts occurs
Solution Approach 1:
The patent applies local quality by arranging feeding parts at specific intervals (quarter wavelength or less) only in critical sections of the loop line transmission structure. This localized arrangement optimizes power transmission efficiency in those specific regions while the overall distributed structure prevents harmful microwave penetration between feeding parts by maintaining appropriate spatial separation throughout the system.
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 enables efficient and uniform heating of objects with various shapes, types, and amounts, reducing cooking time and enhancing radiation efficiency by suppressing microwave penetration between feeding parts and preventing excessive electric power loss.
Implementation Method 1
The transmission line has a loop line structure provided with a plurality of branch parts including a first branch part, a second branch part, and a third branch part. The transmission line transmits the microwave to the first radiation part, the second radiation part, and the third radiation part respectively connected to the first branch part, the second branch part, and the third branch part.
Implementation Method 2
The plurality of radiation parts includes a first radiation part, a second radiation part, and a third radiation part, and radiates a microwave
Implementation Method 3
a microwave treatment device for heating a heating target object accommodated in a heating chamber
Data Source
AI summary
A microwave treatment device includes a plurality of radiation parts, a transmission line, and a plurality of feeding parts. The plurality of radiation parts includes first, second, and third radiation parts, and radiates a microwave. The transmission line has a loop line structure provided with a plurality of branch parts including first, second, and third branch parts, and transmits the microwave to the first, second, and third radiation parts respectively connected to the first, second, and third branch parts. The plurality of feeding parts includes the first feeding part and the second feeding part arranged in the transmission line at an interval of ¼ or less of the wavelength of the microwave, and transmits the microwave to the transmission line. According to this aspect, a radiation part that radiates the microwave can be selectively switched. This enables the intended heating distribution to be achieved.