Charging machine

A charger and main charging technology, applied in the direction of collectors, electric vehicles, electrical components, etc., can solve the problems of damage, the inability to convert the second stage of the battery pack to the third stage, the thermal runaway of battery charging, etc., to meet the charging requirements. , to avoid the effect of thermal runaway

Active Publication Date: 2009-02-04
上海施能电器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the working characteristics of high current, deep discharge, and cyclic use of electric vehicle battery packs, the use of ordinary chargers will cause a large number of battery plate salinization and water loss, which shortens the service life of the battery pack; at the end of its life, it will also cause Part of the battery pack cannot be converted from the second stage to the third stage, resulting in thermal runaway of the battery charging, resulting in deformation and damage

Method used

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0029] Referring to Fig. 1, the charger includes a main charging circuit and a charging control circuit, the main charging circuit includes a filter circuit 1, a rectification filter circuit 2, a pulse voltage divider circuit, a half-bridge inverter circuit 3, a drive control circuit 4, High-frequency rectification and charging circuit 5, the charging control circuit includes a power supply circuit 6, a voltage stabilizing circuit 8, a self-circulation circuit 7, a current monitoring circuit 9, a voltage monitoring circuit 10, a temperature monitoring circuit 11, a control display circuit 13 and a pulse modulation switch Power integrated control circuit 12.

[0030] After the filter circuit 1 filters the grid voltage 220V or 110V input to the ch...

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Abstract

Disclosed is a charging machine including a main charging circuit and a charging control circuit, the main charging circuit comprises a filter circuit, a rectifier filter circuit, a pulse bleeder circuit, a half-bridge inversion circuit, a drive control circuit and a high frequency rectifier charging circuit, the charging control circuit comprises a power supply circuit, a voltage stabilizing circuit, a self-recycle circuit, a current detecting circuit, a voltage detecting circuit and a temperature detecting circuit, and the charging control circuit also comprises a control display circuit and a pulse modulation switching power supply integrating control circuit. The charging machine can effectively release the sulfation phenomenon of a battery plate by controlling a single chip microcomputer in the control display circuit to adopt multi-stage pulse type charging method, fives stages including constant current, constant voltage, floating charge I, average charge and floating charge II. Each stage in process outputs different duty cycle pulsing signal through the control of single chip microcomputer and then a half-bridge power tube is controlled to reach intermittent pulse current charge and depolarization effect.

Description

Technical field: [0001] The invention relates to the technical field of intelligent charging, in particular to an intelligent charger suitable for charging lead-acid batteries on various electric vehicles, electric forklifts and other electric vehicles. Background technique: [0002] Lead-acid batteries are widely used due to their low manufacturing cost, large capacity, and low price. Electric vehicles, electric forklifts and other electric vehicles generally use lead-acid battery series battery packs, and chargers mostly use constant current, constant voltage and small current floating charge three-stage charging methods. Due to the working characteristics of high current, deep discharge, and cyclic use of electric vehicle battery packs, the use of ordinary chargers will cause a large number of battery plate salinization and water loss, which shortens the service life of the battery pack; at the end of its life, it will also cause Part of the battery pack cannot be conver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/10
Inventor 陈佩忠吴锦华陈波陈明根倪向华倪德林曹金霞
Owner 上海施能电器设备有限公司
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