An automatic test device for air plug pressure relief of silver-zinc batteries

Abstract

An automatic test device for air lock decompression of a silver-zinc battery comprises a cylinder for supplying a high-pressure air source, and an air compressor. The cylinder is connected with a buffer cylinder through a pipeline which is provided with a first electromagnetic valve. The buffer cylinder is connected with an air nozzle for mounting an air plug through a pipeline. The pipeline between the buffer cylinder and the air nozzle is provided with a pressure transmitter, a trace gas flow meter and a second electromagnetic valve successively. The cylinder is connected with an overflow valve through a pipeline which is provided with a third electromagnetic valve. The first electromagnetic valve, the third electromagnetic valve, the pressure transmitter, the trace gas flow meter and the second electromagnetic valve is connected with an embedded computer and a touch screen through an RS-485 communication control bus. The automatic test device for air lock decompression of the sliver-zinc battery can realize high-precision automatic intelligent detection for a battery air lock breaking pressure. Except for manual mounting and detachment for a to-be-tested air lock and parameter inputting, the rest processes are automatically finished.

Description

technical field [0001] The invention relates to an automatic test device for air plug pressure relief of a silver-zinc battery, which relates to the field of air tightness detection in battery manufacturing. Background technique [0002] Silver-zinc batteries are widely used in industry, and the airtightness of the gas plug is a very critical technology. Poor airtightness of the air plug will cause leakage and corrosion pollution on the one hand, and affect the life of the battery on the other hand. Therefore, the airtightness of silver-zinc batteries is an important indicator to measure the performance and reliability of batteries. The airtightness of the air plug is closely related to the breakthrough pressure of the air plug. Most of the commonly used air plug pressure relief detection methods use the water immersion method, and the specific steps are as follows: 1) The tester fixes the silver-zinc battery air plug to the detection gas nozzle through threads; 2) Take a ...

AI Technical Summary

Problems solved by technology

However, this method has many defects, which cannot meet the industrial requirements at all. The specific defects are as follows: 1), people's response will be delayed, and the low precision of the original barometer will cause the breakthrough pressure value to be inaccurate and have no reference value; 2) In the detection process, only relying on manual reading results, it is considered that the influencing factors are relatively large; 3), the automation ability is low, not only the work efficiency is low, but also the results are not accurate; 4), the data of each detection is not very good are classified so that there is no reference standard

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