Multi-channel equalization charge-discharge maintenance device of bidirectional DC-DC lithium battery module

A technology for balancing charge, discharge and maintenance devices, applied in battery circuit devices, charge equalization circuits, circuit devices, etc., can solve the problems of limited number of battery cells, inability to continuously adjust, and limited application scope, so as to shorten the maintenance time, Improve the effect of equipment application occasions and randomness and maintain consistency

Pending Publication Date: 2017-10-03
FUZHOU FUGUANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the invention only works with a unit module composed of multiple battery cells connected in series, and the number of battery cells with full name charging and discharging is limited; the maximum low-voltage power supply is only 48V, which limits the scope of application to a certain extent; the working current is The gear adjustment mode cannot be continuously adjusted; and the two-wire method is used, which makes the wiring more complicated

Method used

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  • Multi-channel equalization charge-discharge maintenance device of bidirectional DC-DC lithium battery module

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Embodiment Construction

[0016] see figure 1 , The invention relates to a bidirectional DC-DC device for realizing multi-channel balanced charge and discharge maintenance of lithium battery modules, including a human-computer interaction layer, a module control layer, and a charge and discharge control layer.

[0017] The human-computer interaction layer displays preset parameter data through a liquid crystal screen, and receives and sends instructions to realize information interaction inside and outside the device.

[0018] The module control layer includes a plurality of power modules, the power module further includes an MCU master control unit and a power switch, and the power module also includes at least one fan, and the fan is connected to the MCU master control unit for use in the entire device circuit heat dissipation.

[0019] The charging and discharging unit further includes a charging and discharging unit channel, a unit control integrated circuit and a bidirectional DC-DC connected in ...

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Abstract

The invention provides a bidirectional DC-DC device for achieving a multi-channel equalization charge-discharge maintenance system of a lithium battery module. The device comprises a human-computer interaction layer, a module control layer and a charge-discharge control layer, wherein the whole device employs a charge-discharge unit modular design and a power modular design, the charge-discharge control layer employs a bidirectional DC-DC technology to achieve an equalization charge-discharge function of the lithium battery module and simultaneously achieve independent charge-discharge working system. Rapid equalization of the lithium battery module is achieved by an independent charge-discharge mode, moreover, the voltage / current control accuracy is higher, and the equalization effect of the lithium battery module is better.

Description

technical field [0001] The invention relates to a maintenance system device, in particular to a lithium battery module multi-channel balanced charging and discharging maintenance device. Background technique [0002] The lithium battery application industry is an emerging industry, and the particularity of lithium batteries. Traditional lead-acid battery maintenance equipment technology does not meet the balanced application of lithium batteries, and the existing balanced maintenance only has voltage monitoring technology, does not have internal temperature monitoring technology, and does not have Two-way DC-DC control is used to realize charging and discharging, and at the same time, the independent work control of separate charging and discharging cannot be achieved. The independent charging and discharging mode realizes the rapid equalization of the lithium battery module, and the voltage and current control precision is high, and the equalization effect on the lithium ba...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0019
Inventor 王迺峰李爱明黄东义黄明黄林君陈高宁李君程永松陈首霞郝磊刘文集孙毅
Owner FUZHOU FUGUANG ELECTRONICS
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