A method to solve the problem of mutual charging and discharging between multiple battery packs

A battery pack, charging and discharging technology, applied in secondary battery charging/discharging, arrangement of multiple synchronous batteries, battery circuit devices, etc. Effect

Active Publication Date: 2017-08-11
新疆四美新能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a simple, easy to operate, and reliable method for solving the problem of mutual charging and discharging between multiple battery packs, and solve the problem that the prior art cannot realize full-cycle charging and discharging The problem

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  • A method to solve the problem of mutual charging and discharging between multiple battery packs
  • A method to solve the problem of mutual charging and discharging between multiple battery packs
  • A method to solve the problem of mutual charging and discharging between multiple battery packs

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Embodiment Construction

[0032] The technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings: as figure 1 As shown, a method for solving the problem of mutual charging and discharging between multiple battery packs includes a battery pack charging step, a battery pack discharging step and a protection step; such as figure 2 The illustrated battery pack includes a plurality of battery modules connected in parallel, such as image 3 As shown, the battery module includes a charging MOS tube, a discharging MOS tube, a current detection module, a temperature control switch and a battery connected in series, and also includes a charging MOS tube, a discharging MOS tube, a current detection module, a temperature control switch and a battery. a connected control module, and a temperature sampling circuit connected to the control module;

[0033] The battery pack discharging step includes the following sub-steps:

[0034] S11: Before the di...

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Abstract

The invention discloses a method for solving a problem of mutual charging and discharging among multiple battery packs. The method comprises a battery pack charging step, a battery pack discharging step and a protection step; in the discharging process, a control module is used for sampling a current passing through a current detection module and a battery voltage; the control module enables a charging metal oxide semiconductor (MOS) tube to be an on state when the discharging current passing through the current detection module is detected by the control module; the control module enables a discharging MOS tube to be off state when the battery voltage reaching an over-discharging threshold is detected by the control module; and the discharging of all battery packs are completed until all discharging MOS tubes are off states. By the method for controlling the off of the charging MOS tubes and the discharging MOS tubes, the problem of mutual charging and discharging caused by mutual parallel connection of the battery packs with different types of voltage classes is solved; and moreover, the full-cycle process of charging and discharging of each battery pack on the condition that all battery packs are in a parallel-connection bus loop is achieved.

Description

technical field [0001] The present invention relates to a method for solving the problem of mutual charging and discharging among a plurality of battery packs. Background technique [0002] With the vigorous development of electronic technology, the consumption of medium and large battery packs is increasing. In the production, testing and use of these battery packs, many charging and discharging processes are used. [0003] The existing charging equipment or discharging equipment has the following disadvantages: [0004] 1. The battery pack needs to use the same type of battery modules for parallel use, that is, the parallel battery pack requires the same voltage of each battery, and the battery modules of completely different types and voltage levels cannot be input and output in parallel. Because in the battery pack, the difference between the cells always exists, taking the capacity as an example, the difference will never disappear, but gradually deteriorate. The sam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/441H02J7/0013H02J7/0021H02J7/0026Y02E60/10
Inventor 毛珂
Owner 新疆四美新能源有限公司
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