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Power input protection rectifying circuit of mobile power bank battery management system

A technology for battery management system and power input protection, applied in battery overcurrent protection, battery circuit devices, safety/protection circuits, etc., can solve problems affecting power battery packs, inconsistencies, etc.

Active Publication Date: 2017-05-17
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This inconsistency significantly affects the life, efficiency and overall capacity of the traction battery pack

Method used

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  • Power input protection rectifying circuit of mobile power bank battery management system

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the specific embodiments thereof will be described in detail below with reference to the accompanying drawings:

[0019] The power bank battery pack BAT is composed of several batteries connected in series and is an important element for energy storage. In order to store energy in the battery, it is necessary to convert the commercial power into direct current of a suitable voltage level, and then gradually convert the energy into the chemical energy inside the battery through the control circuit according to the charging characteristics of the battery. Since the battery pack is composed of a large number of battery cells, there are certain differences in parameters and characteristics. It plays a very important role in exerting the performance of the battery, shortening the charging time and improving the charging efficiency.

[0020] see figure 1 , the ...

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Abstract

The invention discloses a power input protection rectifying circuit of a mobile power bank battery management system. The power input protection rectifying circuit comprises a fuse, a protection resistor, a first gas discharge tube, a second gas discharge tube, a third gas discharge tube, a fourth gas discharge tube, a first piezoresistor, a second piezoresistor, a third piezoresistor, a fourth piezoresistor, a choking coil, a first filter capacitor, a second filter capacitor, a first rectifying diode, a second rectifying diode, a third rectifying diode and a fourth rectifying diode. By the power input protection rectifying circuit, overcurrent protection, lightning protection, overvoltage protection, surge suppression and output short circuit protection during the charging of a serially-connected power battery pack can be achieved.

Description

technical field [0001] The invention relates to a power input protection rectifier circuit of a mobile charging treasure battery management system. Background technique [0002] The existing infrastructure for electric vehicles is mainly fixed and cannot be moved flexibly. In the actual use of electric vehicles, due to human negligence or equipment failure, sometimes the electric vehicle on the way cannot continue to travel to the charging and replacing point due to the exhaustion of electric energy. In view of the above unexpected situations, it is very necessary to develop a freely movable charging unit to supplement energy for electric vehicles. Therefore, the concept of a mobile power bank specially designed for electric vehicles is proposed. [0003] The mobile power bank is an emergency power supply device for a freely movable electric vehicle, and the battery energy storage unit is an important part of the mobile power bank. Due to the influence of manufacturing pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02
CPCH02J7/0026H02J7/027H02J7/00304Y02E60/10
Inventor 许楫沈晓枉钟筱怡苗伟杰吴琼徐方严小恺李亮戴军王婧吴晓军徐旭东
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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