Control method and microwave heating device

A technology of microwave heating device and control method, applied in microwave heating, electric heating device, electric/magnetic/electromagnetic heating and other directions, can solve the problem of inability to accurately evaluate the cooking and heating curve of food, and inability to accurately calculate the efficiency and detection of energy absorbed by food. The accuracy does not meet the cooking needs and other problems

Active Publication Date: 2021-01-29
GUANGDONG WITOL VACUUM ELECTRONICS MFR
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Problems solved by technology

[0003] However, the microwave reflection detection method is applied to solid-state source microwave heating devices to detect the absorption efficiency of the emitted microwave energy by food. The detection accuracy of only judging that the standing wave is lower or higher than a certain threshold obviously does not meet the cooking needs. Accurately calculate the efficiency of energy absorption of food, so it is impossible to accurately evaluate the cooking heating curve of food

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  • Control method and microwave heating device
  • Control method and microwave heating device
  • Control method and microwave heating device

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Embodiment Construction

[0055] Embodiments of the present invention are described in detail below, embodiments of which are illustrated in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0056] In the description of the embodiments of the present invention, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0...

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Abstract

The invention discloses a control method and a microwave heating device. The control method is used for the microwave heating device. The microwave heating device includes a solid state source. The control method comprises the following steps: controlling the solid-state source to output a microwave signal according to set frequency and power; obtaining the voltage of a reverse link of the microwave heating device; acquiring the temperature of the solid-state source; and obtaining reflection power corresponding to the voltage according to the frequency and the temperature of the solid-state source. According to the control method, by collecting the voltages of the reverse link under different frequencies and powers and the temperature of the solid-state source, a temperature compensation method can be adopted, it is ensured that the relatively accurate reflection power can be collected, then the food energy absorption efficiency can be accurately calculated, and control over the outputpower of the solid-state source is facilitated.

Description

technical field [0001] The invention relates to the technical field of household microwave heating, in particular to a control method and a microwave heating device. Background technique [0002] In the related technology, the transmitting module of the microwave heating device can realize precise control of the amplitude, phase and frequency of the microwave energy, and the reflected power detection of the transmitting output port is only to prevent the circulator or load resistor from being destroyed when the reflected power is too large And the final power amplifier tube, so the detection accuracy of the reflected power of the output port is not high, such as port standing wave split (infinite standing wave), short circuit (infinite standing wave), 50ohm (standing wave is 1), different mismatched loads The lower standing wave may be 2, 3, 4, 5...etc. Reflected signal detection in the communication field is only to report alarm information when the detected standing wave ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/68
CPCH05B6/687H05B6/686Y02B40/00
Inventor 方友平陈茂顺
Owner GUANGDONG WITOL VACUUM ELECTRONICS MFR
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