Device and method for controlling a barbecue tube

Abstract

The invention discloses a method for controlling the power of a barbecue tube, which includes the following steps: S1. Divide the total heating time of the food to be heated into multiple heating time periods, and within the multiple heating time periods from first to last, Perform voltage modulation on the input voltage at both ends of the barbecue tube with successively lower target voltages; S2. During the process of heating the food to be heated by the working voltage obtained after the voltage modulation of the barbecue tube, monitor the food to be heated The current temperature, and when the current temperature reaches the preset target temperature, the barbecue tube is turned off. The invention also correspondingly discloses a barbecue tube power control device. The barbecue tube power control device and method provided by the embodiments of the present invention can realize accurate voltage modulation of the working power of the barbecue tube in stages, so as to meet the needs of different heating stages of food, not only prevent food from being baked or burnt, but also can Energy saving.

Description

technical field [0001] The invention relates to a barbecue pipe control technology, in particular to a barbecue pipe control device and method. Background technique [0002] Generally speaking, a microwave oven is a device that uses electric energy to generate ultrashort waves through a magnetron, and irradiates ultrashort waves on food and other heated objects. However, driven by consumer demand, in addition to magnetrons, current microwave ovens are also equipped with heating sources such as heaters and barbecue tubes to provide more abundant cooking functions. In a microwave oven with a grilling function, a grilling pipe is usually arranged on the top of the cooking chamber, and at the same time, it cooperates with a grilling rack arranged inside the cooking chamber to provide sufficient heat to the food. [0003] In order to heat different foods and be suitable for different heating stages of foods, the above-mentioned barbecue tube also requires power control. The cur...

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Problems solved by technology

However, both of these two methods have certain disadvantages: for voltage regulation with series resistors, although the voltage at both ends of the barbecue tube can be changed, a certain amount of electric energy is consumed on the resistors, which is not conducive to energy saving, and the resistors are easily damaged due to heating, and the circuit is also damaged. Stable; for the latter method, only by controlling the on-off of the roasting tube, the voltage value applied to both ends of the roasting tube is not changed in essence, so the light radiation wavelength and working efficiency of the grilling tube cannot be really changed, so it is not conducive to controlling food The degree of grilling is prone to burn-like situations

Moreover, for different heating stages of food from raw to cooked, the required temperature is different, and the above-mentioned common control method cannot realize the temperature control of staged heating

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