Frequency shaking control method of electromagnetic heating equipment and electromagnetic heating equipment
A technology of heating equipment and control methods, applied in induction heating control, electric/magnetic/electromagnetic heating, induction heating, etc., can solve problems such as inability to enter frequency shaking, affect customer experience, poor adaptability of cookware, etc., and achieve Improve the effect of excessive back pressure, increase heating power, and increase adaptability
Active Publication Date: 2022-04-05
JOYOUNG CO LTD
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Problems solved by technology
Due to the limitations of the current frequency shaking technology control, when using some double-bottom cookware with back pressure close to the back pressure limit, sometimes it can enter the frequency shaking state, and sometimes it cannot enter the frequency shaking state, which will cause the induction cooker job instability
[0003] In addition, if figure 1 As shown, once the system sets the upper limit threshold of the program pulse generator (PPG), it can only adapt to one kind of pot, which will sometimes cause the pot and electromagnetic heating equipment to be unable to adapt, resulting in insufficient heating power of the device , thus affecting the customer experience; and if only one type of pot is adapted, it will affect the use of other types of pots, which will lead to the problem of poor adaptability of pots
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[0036] In order to explain the overall concept of the present application more clearly, the following detailed description will be given by way of examples in combination with the accompanying drawings.
[0037] figure 2 It is a schematic diagram of the back pressure waveform of the double bottom cooker of the present invention; image 3 It is a schematic diagram of the back pressure waveform of the multi-bottom pot in the frequency shaking mode of the present invention. When using double-bottom cookware, the back pressure waveform is as follows figure 2 As shown, the power switching device IGBT (Insulated Gate Bipolar Transistor) in the electromagnetic heating equipment will have a limit back pressure value. If the limit back pressure value is exceeded, the IGBT will be broken down and the induction cooker will not work. Generally, electromagnetic heating equipment will set a protection value: for example, 1.16kV, once the back pressure value is higher than this protectio...
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The invention relates to a frequency shaking control method of electromagnetic heating equipment and electromagnetic heating equipment. The equipment includes a power switching device for heating control. The method includes: powering on the equipment and setting a frequency shaking mode threshold to perform heating work; obtaining The back voltage value of the power switching device of the device; according to the back voltage value, determine whether to adjust the frequency shaking mode threshold; control the device according to the unadjusted or adjusted frequency shaking mode threshold Enter the frequency shaking mode; after the device enters the frequency shaking mode, adjust the heating power of the device. The invention increases the adaptability of the electromagnetic heating equipment to work in the frequency-shaking mode for different types of cookware; makes the work of the electromagnetic cooker more stable; can improve the problems of high backpressure and low power of double-bottom cookware, and can improve electromagnetic heating The heating power of the equipment to the double bottom pot.
Description
technical field [0001] The invention relates to the technical field of electromagnetic heating equipment, in particular to a frequency shaking control method of electromagnetic heating equipment and electromagnetic heating equipment. Background technique [0002] In the currently used frequency shaking control method, the threshold value for judging entering the frequency shaking balance is a fixed value. Due to the limitations of the current frequency shaking technology control, when using some double-bottom cookware with back pressure close to the back pressure limit, sometimes it can enter the frequency shaking state, and sometimes it cannot enter the frequency shaking state, which will cause the induction cooker Work is unstable. [0003] In addition, if figure 1 As shown, once the system sets the upper limit threshold of the program pulse generator (PPG), it can only adapt to one kind of cooker, which will cause the cooker and electromagnetic heating equipment to be u...
Claims
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IPC IPC(8): H05B6/06H05B6/12
CPCH05B6/06H05B6/1227H05B6/062
Inventor 朱泽春胡炜张伟徐肇松
Owner JOYOUNG CO LTD