Microwave treatment device
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Solution Overview
Problem
Conventional microwave treatment devices face difficulties in achieving uniform heating for objects of varying shapes, types, and amounts due to limitations in microwave distribution, which results in inefficient heating and increased cooking time.
Innovation Solution
A microwave treatment device with a ring-shaped transmission line group and phase-controlled antenna configuration, where transmission lines have specific phase lengths and branch points to control microwave phase and distribution, ensuring efficient heating by canceling or overlapping microwaves to target objects effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a plurality of antennas is rotated to supply microwaves to a wide area, then microwave distribution is improved, but microwave distribution does not change much and heating efficiency remains low
Solution Approach 1:
The patent employs phase difference control to dynamically adjust microwave distribution patterns without physically moving antennas. By changing the phase difference between signals from multiple antennas, the system can shift standing wave patterns and concentrate microwave energy on different areas, achieving dynamic microwave distribution control that improves heating efficiency while maintaining wide area coverage.
Solution Approach 2:
The patent changes the phase parameter of microwave signals to achieve different distribution patterns. By controlling the phase difference between multiple antennas, the system can transform standing wave patterns and redirect microwave energy to different locations, solving the problem of static microwave distribution while maintaining efficient heating.
2Manufacturing precision
If phase difference control is used to change microwave distribution, then uniform heating is achieved, but the standing wave only moves half wavelength and microwave distribution changes are limited
Solution Approach 1:
The patent divides the microwave signal into multiple independent channels, each with controllable phase and amplitude. By segmenting the signal distribution control, the system can independently adjust microwave patterns for different heating needs, achieving both uniform heating and flexible adaptation to various object shapes and sizes through coordinated control of multiple segmented channels.
3Area of stationary object
If microwave distribution is changed by synthesizing microwaves inside the heating chamber, then heating coverage is improved, but the microwave distribution changes are influenced by the object and heating results are unpredictable
Solution Approach 1:
The patent performs preliminary phase difference control and microwave pattern adjustment before heating begins. By pre-configuring the microwave distribution pattern according to the object's characteristics and then maintaining this pattern throughout heating, the system eliminates the influence of object-induced microwave distribution changes, ensuring consistent and reliable heating results while maintaining wide area coverage.
4Adaptability or versatility
If a plurality of microwave radiation portions are intermittently driven to greatly change microwave distribution, then heating flexibility is improved, but electric power supply decreases and cooking time increases
Solution Approach 1:
The patent maintains continuous microwave radiation from multiple antennas simultaneously, with each antenna operating continuously but with independently controllable phase and amplitude. This continuous operation eliminates the power supply interruptions caused by intermittent driving, reducing cooking time while still achieving flexible microwave distribution through phase difference control of the continuous signals.
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 allows for desired heating of objects with various shapes, types, and amounts in a shorter time by precisely controlling microwave distribution, enhancing heating efficiency and reducing cooking time.
Implementation Method 1
The plurality of transmission lines includes a first transmission line, a second transmission line, a third transmission line, and a fourth transmission line, all of which are coupled in a ring shape... The first transmission line has the same phase length as that of each of the second transmission line and the fourth transmission line. The third transmission line has a phase length that is different from each phase length of the first transmission line, the second transmission line, and the fourth transmission line.
Implementation Method 2
The first antenna and the second antenna are configured to radiate microwaves to the heating chamber
Implementation Method 3
The first antenna and the second antenna are configured to radiate microwaves to the heating chamber
Implementation Method 4
The plurality of transmission lines includes a first transmission line, a second transmission line, a third transmission line, and a fourth transmission line, all of which are coupled in a ring shape... The first transmission line has the same phase length as that of each of the second transmission line and the fourth transmission line. The third transmission line has a phase length that is different from each phase length of the first transmission line, the second transmission line, and the fourth transmission line.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A microwave treatment device includes a heating chamber, a first and second antennas, a transmission line group, and a plurality of supply parts. The heating chamber accommodates an object to be heated. The first and second antennas radiate microwaves to the heating chamber. The transmission line group includes a plurality of transmission lines for supplying the first and second antennas with microwaves. The plurality of supply parts supplies the transmission line group with a microwave. The plurality of transmission lines includes first to fourth transmission lines coupled in a ring shape. The transmission line group further includes a first branch part between the first and third transmission lines, and a second branch part between the second and fourth transmission lines. The plurality of supply parts includes a first supply part between the first and second transmission line, and a second supply part between the third and fourth transmission lines. The first transmission line has the same phase length as that of each of the second and fourth transmission lines, and the third transmission line has a phase length different from that of each of the first, second, and third transmission lines. This aspect can carry out desired heating to objects to be heated having various shapes, types, and amounts for a short time.