Charging method of intelligent charger

A technology of intelligent charging and charging method, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve the problem that the temperature rise of the battery is easy to rise too fast, and achieve small temperature rise, low power consumption, The effect of battery cell capacity balance

Active Publication Date: 2013-12-11
上海施能电器设备有限公司
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AI Technical Summary

Problems solved by technology

Especially after the polarization degree of the battery is deepened in the later stage, the temperature rise of the battery is easy to rise too fast

Method used

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  • Charging method of intelligent charger

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Embodiment Construction

[0049] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0050] see figure 1 , the present invention comprises following 7 stages:

[0051] a. Precharge phase ( figure 1 Section A-B in ):

[0052] When the average voltage Ud of a single cell of the battery is lower than 1.90V, the smart charger charges the battery with a constant current of 0.5Ie until the average voltage of a single cell of the battery exceeds 1.90V, and enters the next stage.

[0053] Note: Ie represents the rated output current of the smart charger.

[0054] b. Rated constant current charging stage ( figure 1 Sections C-D in ):

[0055] When the average voltage Ud of a battery cell satisfies: 1.90V

[0056] c. The fi...

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Abstract

The invention discloses a whole charging process. The whole charging process is divided into seven stages and is characterized by comprising at least two pulse charging stages, wherein in the first pulse charging stage, when the average voltage Ud of a unit cell of a storage battery is higher than a third set voltage and lower than a fourth set voltage, the intelligent charger enters the pulse charging state and the pulse charging current of the intelligent charger is a second changing current dropping gradually along with rise of the average voltage Ud of the unit cell of the storage battery; the next stage is started after the voltage of the storage battery reaches the fourth set voltage; in the second pulse charging stage, after the storage battery is normally charged, the total charging time is shorter than first set time and the intelligent charger charges the storage battery with a third changing current by an intermittent charging method until the storage battery is disconnected with the intelligent charger. The whole charging process has the beneficial effects that the charging efficiency is promoted by controlling the charging current in the whole process reasonably and the temperature rise and the power consumption are low under the condition of ensuring sufficiency.

Description

technical field [0001] The invention relates to the field of charging lead-acid batteries, in particular to a charging method for an intelligent charger. Background technique [0002] Existing battery charging methods mainly include constant voltage method, constant current method and fast charging method. These methods have been introduced in some materials. The constant voltage method is a charging method in which the maximum voltage reached by the rechargeable battery is limited. When the battery terminal voltage rises to the set maximum value, the battery is considered to be fully charged. The constant current method is a method of charging the battery with a constant current, which usually gives the charging duration to control the charging process. The fast charging valve is a method of charging the battery with a large current pulse. This method has a discharge depolarization process between the pulses. By measuring the maximum limited voltage of the battery (or cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44
CPCY02E60/10
Inventor 葛宏斌陈佩忠陈波陈明根
Owner 上海施能电器设备有限公司
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