Charge and discharge control apparatus and method, and intelligent battery

Abstract

The invention discloses a charge and discharge control apparatus and method, and an intelligent battery. The charge and discharge control apparatus is arranged in a lead acid storage battery and comprises a voltage acquisition unit, a current acquisition unit, a temperature acquisition unit, a processor unit and a servo unit, wherein the voltage acquisition unit, the current acquisition unit and the temperature acquisition unit can accurately acquire voltages, currents and an internal temperature of the lead acid storage battery, and the processor unit, according to the on-off state of a lead acid storage battery charge and discharge loop, fed back by the servo unit, calculates continuous time of conduction and disconnection of a charge loop. The processor unit, according to the obtained voltages, the currents, the internal temperature, the on-off state of the charge and discharge loop and the continuous time of conduction and disconnection, controls the servo unit to conduct or disconnect the charge and discharge loop of the lead acid storage battery. According to the invention, the lead acid storage battery is intermittently charged, the lead acid storage battery is prevented from long-time overcharge, charge at a high temperature and the like, and the life of the lead acid storage battery is effectively prolonged.

Description

technical field [0001] The present application relates to the field of battery charge and discharge, in particular to a charge and discharge control device and method for a lead-acid battery. Background technique [0002] Valve-regulated lead-acid batteries are often used as a backup power supply and are widely used in important places such as power rooms, data rooms, and mobile base stations. In recent years, the global valve-regulated lead-acid battery market capacity has reached tens of billions of yuan per year. [0003] Due to the great difference in the operating environment of VRLA batteries, monitoring and maintenance of VRLA batteries is necessary for many important places. At present, there are two main ways to monitor and maintain batteries in the industry: [0004] The first is manual inspection. Every once in a while (such as 3 months or half a year), engineering personnel arrive at the site to test the battery current, voltage, temperature, etc., and manually...

AI Technical Summary

Problems solved by technology

There are several disadvantages in manual inspection: because many base stations are located in remote areas, the investment of personnel and vehicle resources is large, which is time-consuming and laborious; power and computer rooms are important places, and the management of personnel entry and exit is very strict, and there may be hidden dangers of computer room failure when personnel enter the computer room

But it also brings new inconveniences: first, the wiring of the monitoring cable is complex, and it is easy to cause interference with strong electric cables, or even open circuit or short circuit; second, the ambient temperature cannot truly reflect the usage status of the battery, and cannot accurately judge the health of the battery conditions, resulting in the inability to carry out scientific maintenance and maintenance

[0006] Under the current technical conditions, the backup power supply of communication base stations usually has a rapid decline in capacity after about 2 to 3 years of use, and is forced to be scrapped in advance, causing a large amount of economic losses and environmental pollution

Or the battery is running at a low capacity, which shortens the backup time of the base station, thereby affecting the communication service quality of the base station, and there is a risk of communication interruption

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