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Device and method for quickly detecting non-heating fault of electromagnetic oven

A technology for heating faults and induction cookers, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of cumbersome detection procedures, low test accuracy and efficiency of the main board of induction cookers, and achieve the goal of narrowing the scope of fault inspection and improving maintenance efficiency. Effect

Inactive Publication Date: 2017-07-04
青岛晟通泰电子科技有限公司
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  • Summary
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AI Technical Summary

Problems solved by technology

The detection process of the existing induction cooker main board is very cumbersome. Generally, after the induction cooker main board is produced, it is connected to the hob of the induction cooker, and then connected to the mains for testing. During the test, it is generally tested whether the induction cooker works under different external conditions. normal
This detection method cannot provide real-time changes in the value of the parameters measured by the induction cooker during the detection. Therefore, the tester can only judge whether the induction cooker is normal at the time of the test based on experience, but cannot find out the hidden dangers caused by the abnormality of the measured parameter data. The accuracy and efficiency of the test is low

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0005] When using the method and device of the present invention to detect the failure of the induction cooker to be energized and not heated, the detector can be directly placed on the induction cooker without dismantling the induction cooker, or the induction cooker can be disassembled, the panel is removed, the control board plug is inserted, and placed on the coil disk . Then turn on the power switch, press the function selection key to make the induction cooker enter the working state, and see if the indicator light on the detector is flashing. At this time, two phenomena will appear:

[0006] If the indicator light is on, it means that the PWM control signal transmission channel is normal, and the synchronous oscillation circuit is working normally, which also means that the IGBT circuit is working normally. At this time, the fault is limited to the voltage and current detection circuit, protection circuit and pot detection circuit. At this time, most of the components ...

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PUM

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Abstract

The invention relates to a method for quickly detecting a non-heating fault of an electromagnetic oven, which comprises the steps that an LED (light-emitting diode) is connected to a primary coil of a small power transformer in parallel to act as an indicating lamp, the indicating lamp is placed on the electromagnetic oven, a power switch is turned on so as to enable the electromagnetic oven to get into an operating state, and whether a coil panel has PWM signals or not is detected according to whether the indicating lamp flashes or not. The invention further relates to a device for quickly detecting a non-heating fault of the electromagnetic oven, which comprises a primary coil of a small power transformer and an LED (light-emitting diode), and is characterized in that the light emitting diode is connected to the primary coil of the small power transformer in parallel.

Description

technical field [0001] The invention relates to a method and a device for quickly detecting the non-heating failure of an electromagnetic oven. Background technique [0002] In the maintenance work of the induction cooker, it is often encountered that the control panel operates normally without heating. Pot circuit, PWM control signal transmission circuit, etc. The range of faults is wide, involving many components, and it is difficult to find faults. The detection process of the existing induction cooker main board is very cumbersome. Generally, after the induction cooker main board is produced, it is connected to the hob of the induction cooker, and then connected to the mains for testing. During the test, it is generally tested whether the induction cooker works under different external conditions. normal. This detection method cannot provide real-time changes in the value of the parameters measured by the induction cooker during the detection. Therefore, the tester ca...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 潘文斋
Owner 青岛晟通泰电子科技有限公司
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