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A battery pack voltage equalizer

A battery pack and voltage equalization technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve problems such as difficulty in achieving voltage equalization, reducing charging aging ratio, etc., so as to improve charging efficiency, improve discharge capacity, reduce The effect of overdischarge risk

Active Publication Date: 2015-10-21
连云港市新达电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing equalization devices require extra equalization time to equalize the voltage, which reduces the time-effect ratio of charging, and it is difficult to achieve voltage equalization during the battery discharge process

Method used

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  • A battery pack voltage equalizer
  • A battery pack voltage equalizer
  • A battery pack voltage equalizer

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as Figure 4 As shown, the present invention provides a battery pack voltage equalization device, including a main controller 401, a charging unit 402, an energy feedback unit 403, an energy collection unit 404, a load 405, and an equalization object.

[0033] in,

[0034] The balancing objects are battery packs B1-B4, of course, they can also be battery cells, or they can also be batteries in the same package, and the number can be 4 or more.

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PUM

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Abstract

The invention discloses a storage battery set voltage balancing device which comprises a storage battery set, a main controller, a charging unit, an energy feedback unit, an energy collecting unit and a load. The main controller is used for collecting the data information of the storage battery set, the charging unit and the energy collecting unit and sending control signals to the charging unit and the energy feedback unit. The charging unit is used for receiving the control signals sent by the main controller and charging the storage battery set. The energy feedback unit is used for providing energy feedback channels for corresponding storage batteries, receiving the instructions of the main controller, and outputting currents to the energy collecting unit according to set currents. The energy collecting unit is used for collecting the currents of the energy feedback unit and converging the currents into a direct-current bus to supply electric energy to the storage battery set. The load is used for receiving the currents output by the storage battery set and the energy collecting unit. The storage battery set voltage balancing device does not need an independent voltage balancing time, can carry out a balancing operation in a discharge process, and is high in charging efficiency and low in over discharge risk.

Description

technical field [0001] The invention belongs to the field of accumulators, in particular to a voltage equalization device for an accumulator group. Background technique [0002] Batteries are widely used in military, aerospace, communications, UPS, electric vehicles and many other fields. The voltage and capacity of single cells are limited, and generally multiple cells are connected in series to meet the requirements. Due to the difference in production process and working environment, there are always certain differences between battery cells. During the discharge process of the battery pack, the cell with the lowest terminal voltage (the voltage between the positive and negative points of the battery cell) sends out the most electric energy; while the battery During group charging, the monomer with the lowest terminal voltage gets the least energy supplement. With the multiple charge and discharge of the battery pack, the unbalance effect of the terminal voltage of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCY02E70/40Y02E60/10
Inventor 徐宏徐祺越
Owner 连云港市新达电子技术有限公司
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