Electromagnetic heating cooking device, heating control circuit and heating control method thereof
A cooking device and heating control technology, which is applied to electric heating devices, induction heating control, electric/magnetic/electromagnetic heating, etc., can solve problems such as power jitter, and achieve the effects of improving power jitter, solving lead-on and hard-on
Active Publication Date: 2021-04-20
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD +1
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Problems solved by technology
Although this method is simple and easy to implement, it is prone to power jitter
Method used
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Embodiment Construction
[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate 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 and are intended to explain the present invention and should not be construed as limiting the present invention.
[0028] The following describes the heating control method of the electromagnetic heating cooking device, the heating control circuit of the electromagnetic heating cooking device and the electromagnetic heating cooking device according to the embodiments of the present invention with reference to the accompanying drawings.
[0029] figure 1 It is a structural schematic diagram of a heating control circuit of an electromagnetic heating cooking device according to an embodiment of the present invention. Such as figure 1 As shown,...
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The invention discloses an electromagnetic heating cooking device and its heating control circuit and method. The method includes: detecting the voltage zero-crossing signal of an AC power supply; when receiving a low-power heating instruction, acquiring the power gear according to the low-power heating instruction , and obtain the heating value corresponding to the current required heating power according to the power gear; obtain the heating interval and stop heating interval according to the heating value; in the heating interval, control the discharge unit to stop discharging according to the voltage zero-crossing signal, and control the discharge unit to stop discharging according to the voltage zero-crossing signal Control the drive unit so that the electromagnetic heating cooking device performs heating work with a preset power; in the heating stop interval, control the discharge unit to perform discharge work according to the voltage zero-crossing signal, and control the driving unit according to the voltage zero-crossing signal to stop the electromagnetic heating cooking device Heating work, so as to control the electromagnetic heating cooking device according to the heating value corresponding to the required heating power, so as to achieve the purpose of improving power jitter during low-power heating.
Description
technical field [0001] The invention relates to the technical field of electromagnetic heating, in particular to a heating control circuit of an electromagnetic heating cooking device, a heating control method of an electromagnetic heating cooking device, and an electromagnetic heating cooking device. Background technique [0002] At present, electromagnetic heating cooking devices such as induction cookers and electric rice cookers mostly use the wave-dropping method to achieve low-power heating. In the low-power heating process, considering the leading conduction of IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), the power of about 1000W is often used, and it is heated with a certain duty cycle within the cycle. This enables low power heating. [0003] In the related technology, heating is performed continuously for A period within a fixed period, and heating is stopped for B periods to realize low-power heating, that is, the heating power is ...
Claims
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IPC IPC(8): H05B6/06
CPCH05B6/062H05B2206/02
Inventor 江德勇李宝刚王云峰曾露添
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD