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Electromagnetic heating system and heating control method thereof, and heating control device

A heating control device, heating system technology, applied in induction heating control, induction heating and other directions, can solve the problems of less current sampling period, slow heating power, small current sampling value, etc., to improve stability, increase rate of rise, current Effect of sample value lag reduction

Active Publication Date: 2018-11-13
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Problems solved by technology

However, the problem of the related technology is that when heating with low power, the heating power rises slowly and the current sampling period is short, which leads to a relatively small current sampling value at startup, which easily causes the phenomenon that the induction cooker is misjudged as no pot due to too small current

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

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote 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.

[0033] The electromagnetic heating system and its heating control method and heating control device according to the embodiments of the present invention will be described below with reference to the accompanying drawings, wherein the electromagnetic heating system is used for resonant heating of a pan placed thereon.

[0034] figure 1 It is a flow chart of the heating control method of the electromagnetic heating system according to one embodiment of the present invention. Such as figure 1 As shown, the heating cont...

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Abstract

The invention discloses an electromagnetic heating system and a heating control method thereof, and a heating control device; the method comprises the following steps: obtaining a target duty ratio, and obtaining a duty ratio adjusting mode; when adjusting the duty ratio in a gradient mode, controlling the duty ratio of a control signal outputted to an IGBT tube to gradually drop to the target duty ratio from a preset duty ratio, controlling the electromagnetic heating system to work according to the gradually lowered duty ratio, controlling the duty ratio of the control signal to be at the target duty ratio after the target duty ratio is reached, and controlling the electromagnetic heating system to work according to the target duty ratio; in the electromagnetic heating system working process, sampling the work current of the electromagnetic heating system in a heating cycle corresponding to the gradually lowered duty ratio or the target duty ratio, and controlling the heating power of the electromagnetic heating system according to the sampled work current. The method can collect the proper current value, thus preventing pot-free misjudgement phenomenon of the electromagnetic heating system duo to the undersized current.

Description

technical field [0001] The invention relates to the technical field of living appliances, in particular to a heating control method for an electromagnetic heating system, a heating control device for an electromagnetic heating system, and an electromagnetic heating system. Background technique [0002] The induction cooker in the related art usually realizes low power by dropping waves, that is, in a low-power heating mode, low-power heating is realized with a certain duty cycle. However, the problem in the related technology is that when heating with low power, the heating power rises slowly and the current sampling period is short, so the current sampling value at startup is relatively small, which may easily cause the phenomenon that the induction cooker is misjudged as no pot due to too small current . [0003] Therefore, related technologies need to be improved. Contents of the invention [0004] The present invention aims to solve one of the technical problems in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/06
CPCH05B6/06
Inventor 江德勇王云峰邹伟
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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