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 manage

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

Examples

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Example Embodiment

[0030] refer to Figure 1 to 3 The present invention provides a battery management system that is incorporated between a mixed switch device, including a bus control unit, and a branch control unit.

[0031] The bus control unit includes a main controller and a first switching module; the main controller is connected to the first switching module and controls the working condition of the first switching module; the first switching module is connected in series to the power supply circuit for control power. Total circuit of the total circuit. The main controller determines based on the collected data based on the battery obtained from the branch controller, to determine whether the battery has an abnormality and performs a related action after the corresponding situation.

[0032] The first switching module includes a charging protection switch K1 and a discharge protection switch K2; the main controller cuts off the charging protection switch K1 when the overflow is charged, and wh...

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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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