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Electromagnetic heating device and heating control method thereof

An electromagnetic heating device and heating control technology, which is applied in the field of electromagnetic heating device and continuous heating control of electromagnetic heating device, can solve the problems of IGBT heating and burning of switch tube, large fluctuation of electromagnetic furnace power, inaccurate current sampling value, etc., and achieve improvement Reliability, avoiding overheating and burning, and improving the effect of the effect

Active Publication Date: 2017-06-13
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] However, if the sampled current sampling value is inaccurate, the power of the induction cooker will fluctuate greatly, which will affect the cooking effect, and even cause the switch tube such as IGBT to overheat and burn out

Method used

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  • Electromagnetic heating device and heating control method thereof
  • Electromagnetic heating device and heating control method thereof
  • Electromagnetic heating device and heating control method thereof

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Embodiment Construction

[0024] 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.

[0025] The heating control method of the electromagnetic heating device and the electromagnetic heating device according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0026] figure 1 It is a flowchart of a heating control method of an electromagnetic heating device according to an embodiment of the present invention. Such as figure 1 As shown, the heating control method of the electromagnetic heating device includes the following steps:

[0027] S1, sampling the ...

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Abstract

The invention discloses an electromagnetic heating device and a heating control method thereof. The heating control method of the electromagnetic heating device comprises the following steps of sampling a current of a switch tube in the electromagnetic heating device to generate a voltage sampling signal; acquiring a current heating power of the electromagnetic heating device, and judging a heating state of the electromagnetic heating device according to the current heating power; selecting corresponding amplification rate to amplify the voltage sampling signal according to the heating state of the electromagnetic heating device, and acquiring a current sampling value according to the amplified voltage sampling signal; and adjusting the heating power of the electromagnetic heating device by comparing the current sampling value with a target current value. According to the method, different amplification rates can be selected to sample the current according to the heating state of the electromagnetic heating device, so that the purpose of preventing power fluctuation of the electromagnetic heating device is achieved, the cooking effect is improved, and serious heat generation of the switch tube can be prevented.

Description

technical field [0001] The invention relates to the technical field of electromagnetic heating, in particular to a continuous heating control method of an electromagnetic heating device and an electromagnetic heating device. Background technique [0002] In the related art, an electromagnetic heating device such as an induction cooker performs power control by comparing a sampled current value with a target current value. Under a certain voltage, the main control chip obtains the target current value under the current power state, and compares it with the sampled current value. If the sampled current value is less than the target current value, the main control chip increases the PPG (Programmable Pulse Generator, programmable pulse generator) to increase the power, if the sampling current value is greater than the target current value, the main control chip will reduce the output of the PPG and reduce the power, so as to achieve the purpose of constant power output. [000...

Claims

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Application Information

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IPC IPC(8): H05B6/06
CPCH05B6/062
Inventor 江德勇肖小龙曾露添李宝刚
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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