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Method and device for realizing uniform heating by utilizing frequency modulation of a single solid-state source

A technology of uniform heating and solid-state source, applied in microwave heating and other directions, can solve the problems of high heating cost and complex structure, and achieve the effects of low cost, good heating uniformity and simple structure

Active Publication Date: 2020-03-31
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a method and equipment for realizing uniform heating by frequency modulation of a single solid-state source, which solves the problems of multi-solid-state source partition heating, high heating cost and complex structure in the prior art

Method used

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  • Method and device for realizing uniform heating by utilizing frequency modulation of a single solid-state source
  • Method and device for realizing uniform heating by utilizing frequency modulation of a single solid-state source
  • Method and device for realizing uniform heating by utilizing frequency modulation of a single solid-state source

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specific Embodiment 1

[0035]The antenna radiation device and the temperature feedback device are arranged in the heating chamber 8; the single solid-state source 4 is connected to the antenna radiation device through the power divider 3; the microcontroller 6 is connected to the single solid-state source 4 and the temperature feedback device; the power divider 3 is 1 point 6-way power divider, including power divider 3 stage ① and power divider 3 stage ②; the power divider 3 includes dividing electromagnetic energy into 2 groups × 3 paths and 2 groups of electromagnetic energy phase difference both Or 0 microstrip circuit or other microwave devices with the same function. Among them, the length difference of the 2-way microstrip circuit in the first stage of the power divider 3 is l 1 -l 2 = Δl is set to the center frequency f 0 Propagation wavelength λ in the medium f0 , or wavelength λ f0 The integer multiple antenna radiation device is a 2×3 array antenna composed of 6 microstrip patch ant...

specific Embodiment 2

[0042] (one)

[0043] The antenna radiation device and the temperature feedback device are arranged in the heating chamber 8; the single solid-state source 4 is connected to the antenna radiation device through the power divider 3; the microcontroller 6 is connected to the single solid-state source 4 and the temperature feedback device; The device 3 is two groups of microwave devices; they are 1-9-way power splitters, including the first stage of the power splitter 3 and the second stage of the power splitter 3; the power splitter 3 divides the electromagnetic energy into 3 groups × 3 roads And the phase difference of the three groups of electromagnetic energy is or 0 microstrip circuits. The single solid-state source 4 frequencies output electromagnetic wave energy of different powers and frequencies at different times to the stage ① of the power divider 3. Due to the length difference Δl of the microstrip circuit, the phase difference of the electromagnetic wave output by ...

specific Embodiment 3

[0058] The antenna radiation device and the temperature feedback device are arranged in the heating chamber 8; the solid-state source is connected to the antenna radiation device through the power divider 3; the microcontroller 6 is connected to the solid-state source and the temperature feedback device; in this embodiment, the power divider 3 is 1 Divide 16-way power divider 3, including power divider 3 stage ① and power divider 3 stage ②; power divider 3 divides the electromagnetic energy into 4 groups × 4 paths, and the phase difference of the electromagnetic energy of the 4 groups is equal to Or 0 microstrip circuit or other microwave devices with the same function. The solid-state source outputs electromagnetic wave energy of different powers and frequencies to the stage ① of the power divider 3 at different times. Due to the length difference Δl of the microstrip circuit, the phase difference of the electromagnetic wave output by the stage ① of the power divider 3 is diff...

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Abstract

The invention relates to the field of microwave heating, in particular to a method and device for realizing uniform heating by utilizing frequency modulation of a single solid-state source, and solvesthe problems of high heating cost and complex structure due to partitioned heating of multiple solid-state sources in the prior art. The invention comprises a single solid-state source and a heatingcavity, and further comprises an antenna radiation device, a power divider, a temperature feedback device and a microcontroller, the microcontroller is connected with the single solid-state source andthe temperature feedback device; the single solid-state source is connected with the antenna radiation device through the power divider. The power divider is composed of more than two groups of microstrip circuits. According to the invention, the microcontroller and the power divider are connected with the single solid-state source to control the frequency, the output power and the working time of the single solid-state source so as to realize partitioned heating in the heating cavity; by arranging the temperature feedback device, temperature distribution in the heating cavity is monitored inreal time, uniform heating can be achieved, and meanwhile heating of different heating curves of all subareas can be achieved; partition heating can be achieved, the heating uniformity is good, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to the field of microwave heating, in particular to a method and equipment for realizing uniform heating by frequency modulation of a single solid-state source. Background technique [0002] With the rapid development of modern science and technology, microwave energy, as a new type of high-efficiency and clean energy, has been widely used in various fields such as industrial production and daily life. Microwave heating is playing an increasingly important role in daily life and industrial production. At the same time, consumers have put forward higher requirements on the cost and uniformity of microwave heating. [0003] In the prior art, there is a method of improving the uniformity of microwave heating by pointing heating, and achieving the purpose of district heating through multi-solid source radiation, but it has the problem of high cost; [0004] There is an urgent need for a new type of heating equipment and method with l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/72
CPCH05B6/72
Inventor 朱铧丞杨阳黄卡玛
Owner SICHUAN UNIV
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