Small-sized storage battery electric quantity measuring instrument

Abstract

The invention provides a small-sized storage battery electric quantity measuring instrument. The small-sized storage battery electric quantity measuring instrument includes a host machine and probes; the host machine is provided with a control panel; the control panel is provided with LED nixie tubes, buttons and probe sockets; and a function motherboard and a power source board are arranged inside the host machine. According to the small-sized storage battery electric quantity measuring instrument of the invention, rapid detection is realized through precise timing, accurate constant current discharge and identical rated voltage realized by a single-chip microcomputer and based on the discharge characteristics of a storage battery. The small-sized storage battery electric quantity measuring instrument has the advantages of high detection precision and high stability.

Description

technical field [0001] The invention relates to the field of battery power detection, in particular to a small battery power tester. Background technique [0002] At present, the battery power testing instruments on the market can accurately detect the capacity, internal resistance and charge-discharge curve of the battery. High-volume quality checks. There are also quick detection devices, but it still takes more than ten seconds or even a few minutes. These are usually used in medium and large products, such as the power detection of batteries used in automobiles or electric vehicles. For small products with large daily output and low price For batteries, it is obviously too slow, and at the same time using a large range to measure small currents, its accuracy is also greatly reduced. [0003] In the process of producing small batteries, enterprises usually use dummy loads to cooperate with multimeters for voltage detection, and sometimes even directly use multimeters fo...

AI Technical Summary

Problems solved by technology

[0002] At present, the battery power testing instruments on the market can accurately detect the capacity, internal resistance and charge-discharge curve of the battery. High-volume quality checks

There are also quick detection devices, but it still takes more than ten seconds or even a few minutes. These are usually used in medium and large products, such as the power detection of batteries used in automobiles or electric vehicles. For small products with large daily output and low price For batteries, it is obviously too slow, and at the same time using a large range to measure small currents, its accuracy is also greatly reduced

[0003] In the process of producing small batteries, enterprises usually use dummy loads to cooperate with multimeters for voltage detection, and sometimes even directly use multimeters for floating voltage detection. The efficiency is low and the error rate is high. There is no uniform standard and the product consistency is poor, which directly leads to a large number of defective products. Delivered to customers, the customer's return rate is high, which has a great negative impact on the company's economic benefits and brand image. The company urgently needs a fast and accurate testing solution

Images