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Winding coil inspection method, device, cooking appliance and readable storage medium

A technology of a winding coil and an inspection method, which is applied in the fields of computer readable storage medium and cooking utensil detection, and can solve the problems of open circuit, fuse of the winding coil, temperature rise of the winding coil, etc.

Active Publication Date: 2022-07-08
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

[0003] Due to factors such as changes in environmental parameters, fluctuations in the power supply grid, and inherent hardware defects, the temperature of the winding coil may rise sharply, which may cause the winding coil to fuse, or the winding coil will usually age after being connected to the AC current signal for a long time. That is to say, there are safety hazards such as short circuit or open circuit in the winding coil in the energized state.

Method used

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  • Winding coil inspection method, device, cooking appliance and readable storage medium
  • Winding coil inspection method, device, cooking appliance and readable storage medium
  • Winding coil inspection method, device, cooking appliance and readable storage medium

Examples

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Effect test

Embodiment 1

[0098] Figure 4 A schematic block diagram of a winding coil inspection system according to an embodiment of the present invention is shown.

[0099] like Figure 4 As shown, the winding coil inspection system according to an embodiment of the present invention includes: an input end 402 for inputting a PWM wave signal to the solenoid valve driving module 404; the solenoid valve driving module 404, whose input interface is connected to the input end 402, It is used to adjust any driving voltage signal required by the output solenoid valve 408; the output end 406 is connected to the output interface of the solenoid valve driving module 404, and is used to output the driving voltage signal to the solenoid valve 408; the solenoid valve 408 is connected to the output end 406 , which is used to adjust the opening and closing degree according to the driving voltage signal generated by the solenoid valve driving module 404; the output terminal feedback voltage A / D acquisition circui...

Embodiment 2

[0105] Figure 5 A schematic flow chart of a winding coil inspection method according to another embodiment of the present invention is shown.

[0106] like Figure 5 As shown, the winding coil inspection method according to another embodiment of the present invention includes: step S502, power on and initialize the microcontroller MCU; step S504, the microcontroller MCU starts the timer T, and within the timing period t, The input end of the solenoid valve drive module keeps sending PWM waves with a certain frequency and duty cycle; step S506, the feedback loop of the drive module samples n output end feedback voltage A / D values ​​at regular intervals within the timing period t; step S508, judges Whether the timing reaches the timing period t, if so, go to step S510, if not, go to step S506; step S510, turn off the PWM wave at the input end, and average the sampled n feedback voltage A / D values ​​to obtain the final sampled D value In step S512, the D value is compared with...

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Abstract

The present invention provides a winding coil inspection method, device, cooking utensil, and readable storage medium, wherein the winding coil inspection method includes: determining a load signal of the winding coil in a short-circuit state, denoting it as a first preset threshold, and / Or determine the load signal of the winding coil in the open circuit state, and record it as the second preset threshold; after the winding coil is connected to the power supply signal, the real-time load signal of the winding coil is detected according to the preset period; Set the magnitude relationship between the thresholds to determine whether the winding coil is short-circuited, and / or determine whether the winding coil is open-circuited according to the magnitude relationship between the real-time load signal and the second preset threshold. Through the technical scheme of the present invention, the accuracy of judging the working state of the winding coil is improved, the possibility of failure of the cooking utensil caused by the load of the winding coil is reduced, and the safety of the cooking utensil is improved.

Description

technical field [0001] The present invention relates to the technical field of cooking appliance detection, and in particular, to a winding coil inspection method, a winding coil inspection device, a cooking appliance, and a computer-readable storage medium. Background technique [0002] In the load equipment based on the principle of electromagnetic induction such as solenoid valves and motors, the winding coil is one of the most important electromagnetic induction components. [0003] Due to factors such as changes in environmental parameters, fluctuations in the power supply grid, and inherent hardware defects, the temperature of the winding coil may rise sharply, which may lead to the fuse of the winding coil, or because the winding coil usually ages after being connected to the AC current signal for a long time. That is to say, there are safety hazards such as short circuit or open circuit in the winding coil in the energized state. SUMMARY OF THE INVENTION [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/72
CPCG01R31/72
Inventor 张亮
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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