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Battery management system with hybrid switching devices capable of being expanded in parallel

A battery management system and switching device technology, applied in different battery charging, secondary battery, battery overcurrent protection and other directions, can solve the problem of inability to guarantee high reliability and high safety, achieve high speed and ensure system safety , to achieve the effect of parallel expansion

Inactive Publication Date: 2021-10-08
CHENGDU UNI LINK ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this case, the traditional battery system and its battery management system BMS solution cannot guarantee high reliability and high safety

Method used

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  • Battery management system with hybrid switching devices capable of being expanded in parallel
  • Battery management system with hybrid switching devices capable of being expanded in parallel
  • Battery management system with hybrid switching devices capable of being expanded in parallel

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Embodiment Construction

[0030] refer to Figure 1 to Figure 3 , The invention provides a battery management system in which hybrid switching devices can be extended in parallel, including a bus control unit and a branch line control unit.

[0031] The bus control unit includes a main controller and a first switch module; the main controller is connected to the first switch module and controls the working condition of the first switch module; the first switch module is connected in series to the main power supply circuit for controlling power supply The on-off state of the total circuit. The main controller judges according to the battery-related data obtained from the branch line controller to determine whether the battery is abnormal, and takes relevant actions after the corresponding situation occurs.

[0032] The first switch module includes a charge protection switch K1 and a discharge protection switch K2; the main controller cuts off the charge protection switch K1 when the charge is overcurre...

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Abstract

The invention discloses a battery management system with hybrid switching devices capable of being expanded in parallel. The battery management system comprises a bus control unit and a branch line control unit. The bus control unit comprises a main controller and a first switch module; the branch control unit comprises a battery module, a second switch module, a branch controller and a detection module; the branch line controller is connected with the main controller, and the branch line controller uploads acquired battery physical information to the main controller; and the main controller issues a control instruction to the branch line controller according to the acquired information. According to the invention, the main controller obtains the state and the signal of the branch line controller, carries out judgment through detecting the collected information, and controls the on-off state of the power supply main loop; meanwhile, the branch line controller can control the on-off state of the battery module through the second switch module according to the detected information so that the battery management system has double guarantees, and the safety is improved.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a battery management system in which hybrid switching devices can be extended in parallel. Background technique [0002] Due to the increasing battery capacity required for RVs, yachts, home energy storage and other fields, lower voltage levels need to support larger currents. For example, the 12v power supply system that comes with the RV can have a current demand of more than 300A, and the battery system shows an increase in capacity and current demand. [0003] In this case, the traditional battery system and its battery management system BMS solution cannot guarantee high reliability and high safety. Contents of the invention [0004] The purpose of the present invention is to provide a battery management system in which hybrid switching devices can be extended in parallel. [0005] To achieve the above purpose, an embodiment of the present invention provides a...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/42H02H7/18
CPCH02J7/0047H02J7/0048H02J7/00304H02J7/0031H02J7/0013H02J7/0018H02J7/00036H01M10/4207H01M10/425H02H7/18H01M2010/4271H01M2010/4278Y02E60/10
Inventor 毛珂
Owner CHENGDU UNI LINK ENERGY
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