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Method and device for judging type of cookware and electric cooking appliance

A technology for judging devices and pots, which is applied in the direction of electric heating devices, induction heating devices, electrical components, etc., can solve problems such as judgment errors, and achieve the effects of accurate judgment, accurate pot type, and convenient heating

Active Publication Date: 2019-12-17
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if a single preset frequency value N is used to judge the type of pot, it is easy to make a judgment error

Method used

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  • Method and device for judging type of cookware and electric cooking appliance
  • Method and device for judging type of cookware and electric cooking appliance
  • Method and device for judging type of cookware and electric cooking appliance

Examples

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Embodiment Construction

[0040] 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.

[0041] The method for judging the type of pan, the device for judging the type of pan and the electric cooking appliance according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0042] figure 1 It is a flowchart of a judging method for a pot type according to an embodiment of the present invention.

[0043] like figure 1 As shown, the judging method of the pot type comprises the following steps:

[0044] S101. Obtain the number of resonance pulses within a pre...

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PUM

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Abstract

The invention discloses a cookware type judgment method and device and an electric cooking utensil, and the method comprises the following steps: obtaining the number of resonance pulses in preset time, and obtaining the width of a current drive pulse; generating a resonance width value according to the number of the resonance pulses and the current driving pulse width; judging whether the resonance width value is less than a preset threshold value or not; if the resonance width value is less than the preset threshold value, judging that the cookware is first material cookware; and if the resonance width value is greater than or equal to the preset threshold value, judging that the cookware is second material cookware, wherein the response inductance value of the second material cookware is less than the response inductance value of the first material cookware. Therefore, the judgment method can accurately judge the type of the cookware, facilitates the targeted control of the electriccooking appliance, facilitates the improvement of the cooking effect, and is good in user experience.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a method for judging the type of a pot, a device for judging the type of a pot, and an electric cooking appliance. Background technique [0002] Since the materials of the pots of the induction cooker are different, their heating characteristics are different. In order to achieve the best heating state of different pots, it is necessary to judge the type of the pot. [0003] For this reason, a new pot judging method is proposed in the related art, which converts the pulse signal per unit time into a frequency, and compares the frequency M with the preset frequency value N to realize the judgment of the pot type. However, under different power states, the pulse width of the PPG (Programme Pulse Generator, programmable pulse generator) driving the IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) is different. Larger, the frequency M value be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/06H05B6/12
CPCH05B6/062H05B6/1227
Inventor 江德勇王云峰
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD