Miniature electronic scale capable of reflecting dust accumulation amount

Abstract

The invention relates to a miniature electronic scale capable of reflecting dust accumulation amount. The miniature electronic scale comprises a tray, a weighing sensor, screw support columns, a wiring terminal, a PCB, an HX711 chip analysis module and an aluminium alloy housing. The HX711 chip analysis module converts collected differential analog signals of the weighing sensor into digital signals, and the amount of dusts accumulated on the tray can be obtained through a series of calculating and processing by an MCU. The electronic scale is small in size, wide in measurement range, high in resolution, and capable of effectively measuring the amount of dusts accumulated in a terminal box in a manner that the part reflects the whole; and when the accumulated dusts exceed standard, an alarm is given, so that the dusts can be cleaned the first time, and safety hidden trouble existing in the terminal box due to accumulation of too many dusts is reduced.

Description

technical field [0001] The invention relates to the field of weighing sensors, in particular to a miniature electronic balance capable of reflecting the accumulated amount of dust. Background technique [0002] If the dust in the terminal box of the substation accumulates to a certain amount, it is likely to cause a short circuit in the internal high-voltage terminal joints and cause a safety accident; the main solution now is to check the terminal box from time to time. Clean up more, but this will greatly increase the workload of employees and waste time, and a large number of terminal boxes make regular inspections unfeasible; a device that can effectively detect the amount of dust accumulated in the terminal box through remote control is urgently needed to be invented. [0003] Only electronic scales can reflect the weight of dust. Problems and shortcomings of ordinary electronic scales: [0004] 1. The appearance of the electronic scale is too large, and the internal v...

AI Technical Summary

Problems solved by technology

[0004] 1. The appearance of the electronic scale is too large, and the internal volume of the substation terminal box is limited

[0005] 2. If the weighing range is too high, it is more than a few grams, and the weight of dust can only be reflected at a resolution of 0.01mg;

[0006] 3. The ordinary electronic scale does not directly reflect the accumulated amount of dust inside the terminal box of the substation, it can only reflect the weight of the objects on the electronic scale tray, and the inside of the terminal box must reflect the whole through parts, and the weight and area must be integrated Together to reflect, how many milligrams per square centimeter (mg / cm2) is the final result?

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