Electromagnetic induction heating device and heating control method thereof
An electromagnetic induction heating and heating control technology, which is applied to the heating control of electromagnetic induction heating devices and the field of electromagnetic induction heating devices, can solve problems such as high production costs, enlarging radiators, and increasing air volume of fans, so as to reduce production costs and achieve universal Strong resistance, the effect of reducing temperature rise
Active Publication Date: 2014-12-24
MIDEA GRP CO LTD +1
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Problems solved by technology
Although these methods can also reduce the temperature rise of the IGBT, increasing the radiator and increasing the air volume of the fan will increase the cost, and there is no rule to change the air duct. Different models need to be modified differently, which increases the complexity of the work and the production cost. high
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[0025] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.
[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purp...
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The invention discloses a heating control method of an electromagnetic induction heating device. The electromagnetic induction heating device comprises a power switch. The heating control method comprises the steps firstly, the current of the power switch is detected in real time; secondly, when the average current of the power switch is larger than or equal to a first current threshold value, the electromagnetic induction heating device is controlled to carry out heating according to the first current threshold value for a first preset time T1, and the duty ratio of signals controlling the power switch is reduced; thirdly, when the average current is smaller than or equal to a second current threshold value, the electromagnetic induction heating device is controlled to carry out according to the second current threshold value for a second preset time T2, and the duty ratio of signals controlling the power switch is reduced, wherein the second current threshold value is smaller than the first current threshold value. According to the heating control method, the temperature rise of the power switch can be effectively reduced, the cost does not need to be increased, and the practicability is high. The invention further discloses the electromagnetic induction heating device.
Description
technical field [0001] The invention relates to the technical field of electromagnetic induction heating, in particular to a heating control method of an electromagnetic induction heating device and an electromagnetic induction heating device. Background technique [0002] At present, electromagnetic induction heating devices such as induction cookers are mainly used to increase the radiator, increase the fan air volume, and change the air duct in the solution to reduce the temperature rise of the IGBT (Insulated Gate Bipolar Transistor) of the induction cooker. of. Although these methods can also reduce the temperature rise of the IGBT, increasing the radiator and increasing the air volume of the fan will increase the cost, and there is no rule to change the air duct. Different models need to be modified differently, which increases the complexity of the work and the production cost. high. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to solv...
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Inventor 秦继祥
Owner MIDEA GRP CO LTD