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Electric automobile lead acid battery charger

A technology for lead-acid batteries and electric vehicles, applied in electric vehicles, battery circuit devices, collectors, etc., can solve the problem of low charging efficiency of chargers, and achieve the effects of light weight, high precision, and reduced damage

Active Publication Date: 2014-08-20
HENAN SUDA ELECTRIC AUTOMOBILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a charger for fast charging of lead-acid batteries of electric vehicles, the charger has fast charging and stable performance, and solves the problem of low charging efficiency of existing chargers

Method used

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  • Electric automobile lead acid battery charger
  • Electric automobile lead acid battery charger
  • Electric automobile lead acid battery charger

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Embodiment Construction

[0017] By designing a reasonable charging strategy and charging algorithm, it can effectively reduce battery damage, reduce charging loss, and increase charging speed. On the basis of studying the characteristics of electric vehicle battery and its charging strategy and charging algorithm, the present invention has invented a 4-stage type (trickle short-time charging, constant current fast charging, constant voltage equalizing charging, floating charging) based on the P IC16C712 microcontroller. charging) lead-acid battery charger. This charger uses P IC16C712 single-chip microcomputer as the real-time monitoring and central control unit, and uses PWM DC-DC full-bridge converter as the main circuit, so that the charger can automatically adjust the output voltage and current according to the charging characteristics of the battery, and carry out intelligent charging, and It can monitor the operating status of the charger in real time, and if there is any abnormality, it can be ...

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Abstract

The invention discloses an electric automobile lead acid battery charger. The electric automobile lead acid battery charger comprises a switch power supply circuit and a monitoring and control unit. The switch power supply circuit comprises a power transformer, a rectification circuit and a filtering circuit. The monitoring and control unit comprises a voltage current sensor, a power special-purpose integrated chip and a microcontroller. The monitoring and control unit is used for detecting and adjusting the currents and voltages of the switch power supply circuit. According to the invention, through designing a reasonable charging strategy and a reasonable charging algorithm, the damage to a storage battery is reduced, and the charging speed is accelerated.

Description

technical field [0001] The invention relates to a charger, in particular to a charger for a lead-acid storage battery of an electric vehicle, which is applied in the field of charging the lead-acid storage battery of an electric vehicle. Background technique [0002] At present, the conventional charging technology used in lead-acid batteries of electric vehicles has an extremely long and slow charging time, which directly affects the reputation of electric vehicles, the development prospects of electric vehicles, and the mood of users. There are various factors affecting the charging performance of electric vehicle lead-acid batteries, such as the assembly performance of the charger, the driving current of the car, and the charging strategy of the charger. Among them, the charging process of the battery has a great influence on its life. Overcharging and insufficient charging are the main causes of battery failure. Contents of the invention [0003] The technical problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/10
Inventor 李复活
Owner HENAN SUDA ELECTRIC AUTOMOBILE TECH
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