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Accumulator battery online equalizing system

A battery pack and balancing system technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as the inability to achieve the benefits of on-line balancing of battery packs, periodic balancing battery damage, battery capacity reduction, etc., and achieve a good society. Benefit and environmental protection, reduce battery water loss, avoid the effect of vulcanization

Active Publication Date: 2012-12-26
ZHUHAI LONL ELECTRIC
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Problems solved by technology

The price of this equalization method is that the battery with high voltage will lose water, and the periodic equalization will cause damage to the battery, reduce the battery capacity, and even cause the battery thermal runaway, which cannot achieve the benefits of online equalization of the battery pack

Method used

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  • Accumulator battery online equalizing system

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Embodiment Construction

[0014] refer to figure 1 , The storage battery online balancing system of the present invention includes a central processing controller 1, a power collection module 2, a battery switching module 3, a voltage online balancing module 4, and an internal resistance capacity online balancing module 5 and the like.

[0015] The central processing controller 1 can be implemented by using an ARM processing chip, such as a chip with a model number of STM32F103VBT6, which can well meet the requirements of the present invention. The power acquisition module 2 collects the power parameters of the battery pack and a single battery in the battery pack, and the power parameters are sent to the central processing controller 1. The ARM processing chip generally has an analog-to-digital conversion module, which can be well integrated with power collection. The module 2 is used together to realize the conversion process of various collected electricity. The electricity detected by the electric...

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Abstract

The invention discloses an accumulator battery online equalizing system which comprises a central processing controller, an electricity quantity acquisition module, a battery switching module, a voltage online equalizing module, an internal resistance and capacity online equalizing module and the like. The system can perform online and real-time equalizing adjusting on the voltage, the internal resistance and the capacity of a battery cell in an accumulator battery, can ensure that each battery in the accumulator battery is operated at an optimized operating state, greatly prolongs the operating life of the accumulator battery by more than two times, improves the reliability and the performance of the accumulator battery, reduces the environment pollution caused by the battery, and has good social benefit and environmental protection property; and the system adopting the active equalizing method can cancel the traditional equalizing method of periodic charging, reduces water loss of the battery, greatly reduces the probability of incontrollable low heat, prolongs the service life of the battery, simultaneously avoids the vulcanization of the battery, and saves a large amount of cost.

Description

technical field [0001] The invention relates to the technical field of storage batteries, in particular to an online balancing system for storage batteries. Background technique [0002] Since the French scientist G..Plante invented the lead-acid battery in 1859, battery problems and scrapping have been bothering users. Over the years, problems such as premature battery scrapping have become more and more serious, and major accidents caused by batteries have also increased repeatedly. Due to technical limitations, the current battery pack online equalization technology widely uses a charger to charge a group of series-connected battery packs online. This charging method cannot guarantee the balanced charging of each battery in the battery pack. Differences in structure and electrolyte density cause inconsistencies in voltage, internal resistance, and capacity of the battery, that is, imbalance. And with the cycle of charging and discharging, this difference will continue t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 王国平
Owner ZHUHAI LONL ELECTRIC
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