Management and control device for lithium battery pack based on charging management

A technology for control devices and lithium battery packs, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of low charging efficiency, small charging current, and poor voltage stability, and improve the stability and safety of charging work. , Reasonable structure, reliable work effect

Inactive Publication Date: 2018-05-01
HEFEI GUOSHENG BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is generally used in lead-acid battery chargers, and its disadvantages are that the power supply is bulky, bulky, and low in charging efficiency. The disadvantages of the latter are that the charging current is relatively small, and when the power is increased, it generates serious heat and the output voltage stability is poor.

Method used

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  • Management and control device for lithium battery pack based on charging management

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] As shown in the accompanying drawings, the present invention proposes a control device for a lithium battery pack based on charging management, which is provided with a housing, and a PCB circuit board is provided inside the housing, and the feature is that a self-protection circuit 1 is provided on the PCB circuit board, The self-protection circuit includes a power transformer, a rectification circuit, an automatic voltage adjustment, a reverse connection protection circuit, and a sufficient automatic power-off circuit. The power-off circuit is connected; the PCB circuit board is also provided with a charging circuit 2, one end of the charging circuit is connected to the input alternating current, the other end of the charging circuit is connected to the power battery, and the charging circuit is connected to the power battery. The input alternating current is ...

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Abstract

The invention relates to the technical field of lithium battery pack charging, specifically a management and control device for a lithium battery pack based on charging management. The device is provided with a housing, and the interior of the housing is provided with a PCB. The device is characterized in the PCB is provided with a self-protection circuit; the PCB is also provided with a chargingcircuit; one end of the charging circuit is connected with an inputted alternating current, and the other end of the charging circuit is connected with a power battery; the charging circuit carries out the conversion of the inputted alternating current, so as to output a first direct current supplied to the power battery; the device is also provided with an AC-DC compatible pre-stage circuit connected with a controller; the AC-DC compatible pre-stage circuit is provided with a rectifier circuit, an AC voltage detection circuit, a DC voltage detection circuit, a PFC circuit, a DC / DC boost circuit, and a pulse width modulation integrated circuit.

Description

Technical field: [0001] The invention relates to the technical field of charging lithium battery packs, in particular to a management and control device for lithium battery packs based on charge management. Background technique: [0002] As a common logistics handling equipment, electric forklifts are widely used. With the advancement of battery technology, more and more electric forklifts use lithium iron phosphate batteries as energy storage components. Lithium iron phosphate batteries have many advantages that lead-acid batteries cannot match: the material is environmentally friendly and lead-free, the number of charge and discharge cycles is long, the energy density is high, and the charging rate is large, so electric forklifts need to be equipped with high-power fast chargers. [0003] Traditional chargers generally adopt two design architectures: low-frequency transformer architecture and high-frequency switching power supply architecture. The former is generally use...

Claims

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Application Information

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IPC IPC(8): H02J7/02H02J7/04H02J7/00
CPCH02J7/0034H02J7/022H02J7/027H02J7/045H02J2207/20
Inventor 吴鹏
Owner HEFEI GUOSHENG BATTERY TECH
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