A current and voltage detection device for an electromagnetic cooker

Abstract

A current and voltage detection device of an induction cooker comprises a shell. Two springs and a support are installed at the bottom of the inner side of the shell. The two springs are located on the two sides of the support correspondingly. A detection circuit board is installed at the upper ends of the springs. The two sides of the bottom of the detection circuit board are connected with the two springs correspondingly. Oil bags of the current and voltage detection device are matched with the springs. The springs can buffer slight vibration of the detection circuit board, influences of slight vibration on the detection circuit board are avoided, and the current and voltage detection accuracy is improved. The two oil bags can achieve liquid exchange through a guide pipe when the detection circuit board vibrates sharply, so that the transient acceleration of the detection circuit board is reduced to the greatest extent, and the detection circuit board is protected against damage.

Description

Technical field: [0001] The invention relates to a voltage detection device, more specifically a current and voltage detection device of an induction cooker. Background technique: [0002] In the peripheral circuit of the single-chip microcomputer of the induction cooker controller, the detection circuit of current and voltage accounts for the main proportion. The main function of this part of the circuit is to detect the working voltage and current of the induction cooker in real time, so that the controller can accurately control the working state of the induction cooker. , to ensure the safe and reliable operation of the induction cooker. This circuit plays a very important role in the induction cooker controller, and its reliability and precision are the prerequisites for the induction cooker to work normally and reliably. In the current induction cooker controller on the market, there are two main ways to detect the current and voltage. First, a specific single-chip m...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this solution is that there are many peripheral components and a large PCB space is required. Moreover, in order to ensure the detection accuracy, one or two trimmer potentiometers are generally required. Each PCB needs to be calibrated one by one, which is difficult to process. The process requirements are high and the efficiency is low, so the quality control is difficult

The circuit board part of the current and voltage detection device of the existing induction cooker is very easy to be damaged under external vibration, resulting in inaccurate current and voltage detection and affecting the accuracy of data

Existing current and voltage detection devices cannot conduct comprehensive detection of the overall temperature of the circuit

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