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Power control method, device and semiconductor microwave heating equipment

A microwave heating equipment and power control technology, applied in the microwave field, can solve problems such as damage to the system, output power exceeding the rated power, etc.

Active Publication Date: 2020-07-24
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, after the microwave heating equipment is started, the microwave source directly outputs the required power according to the preset output power. However, in the process of actual operation, the actual output power may exceed the rated power and damage the system problem

Method used

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  • Power control method, device and semiconductor microwave heating equipment
  • Power control method, device and semiconductor microwave heating equipment
  • Power control method, device and semiconductor microwave heating equipment

Examples

Experimental program
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Embodiment 1

[0048] figure 1 A schematic flowchart of Embodiment 1 of the power control method according to the present invention is shown.

[0049] Such as figure 1 As shown, the power control method according to the embodiment of the present invention includes: step 102, when the semiconductor microwave heating device receives the start signal, control the microwave source of the semiconductor microwave heating device to start with an input power less than the input power threshold; step 104, When it is detected that the output power of the microwave source does not exceed the rated output power, according to the difference between the detected output power and the rated output power, the control parameters of the output power are adaptively adjusted so that the output power of the microwave source reaches the rated output power.

[0050] In this embodiment, through step 102, the semiconductor microwave heating equipment is controlled to start with an input power less than the input po...

Embodiment 2

[0058] figure 2 A schematic flowchart of Embodiment 2 of the power control method according to the present invention is shown.

[0059] Such as figure 2 As shown, according to the power control method of the embodiment of the present invention, according to the difference between the detected output power and the rated output power, the adaptive adjustment of the control parameters of the output power specifically includes: Step 202, according to the gain and the microwave The first analog input power of the source is used to obtain the first pre-output power; step 204, calculate the difference between the first pre-output power and the rated output power; step 206, if the difference is zero, start with the first analog input power Microwave source; step 208, if the difference is greater than zero, then increase at least one preset change value on the basis of the first analog input power to generate a second analog input power until the second pre-output power correspondin...

Embodiment 3

[0083] Figure 4 A schematic flowchart of Embodiment 3 of the power control method according to the present invention is shown.

[0084] Such as Figure 4 As shown, the power control method according to the embodiment of the present invention includes: step 402, determine the gain of the power amplifier according to the standby temperature; step 404, determine the input power threshold according to the gain and the rated power; step 406, determine the input power threshold with the microwave source Start with an input power less than the input power threshold; step 408, judge whether the output power of the microwave source exceeds the rated output power; if so, perform step 410, determine the target input power according to the rated input power and gain, and start the microwave source with the target input power ; If otherwise step 412 is executed, according to the gain and the first analog input power of the microwave source, the first pre-output power is obtained; step 41...

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Abstract

The invention provides a power control method, a power control device and semiconductor microwave heating equipment. The power control method comprises the following steps: when semiconductor microwave heating equipment receives a start signal, the microwave source of the semiconductor microwave heating equipment is started at an input power lower than an input power threshold under control; and when that the output power of the microwave source does not exceed a rated output power is detected, the control parameters of the output power are adjusted adaptively according to the detected difference between the output power and the rated output power to make the output power of the microwave source reach the rated output power. Through the technical scheme of the invention, it is ensured that the power of the semiconductor microwave heating equipment does not exceed the rated power in the process of starting, the safety is improved, and the service life of the semiconductor microwave heating equipment is prolonged.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a power control method, a power control device and a semiconductor microwave heating device. Background technique [0002] With the development of science and technology, microwave heating equipment has become popular in the lives of users. In related technologies, the magnetron of microwave oven converts electrical energy into microwave energy. When the magnetron emits microwaves at a frequency of 2450MHz, it is placed in the cavity The water molecules in the water oscillate at a frequency of 2.45 billion times per second. The core component that generates the high-frequency electromagnetic field is the magnetron. Food molecules vibrate in the high-frequency magnetic field, and the molecules collide and rub against each other to generate heat. Warm up the food. [0003] In the prior art, after the microwave heating equipment is started, the microwave source directly outputs ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/68
CPCH05B6/68Y02B40/00
Inventor 史龙刘建伟张斐娜刘民勇贾逾泽贺财兴孙宁
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
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