The balance management module of the series battery pack powered by the instrument internally
A technology of connecting battery packs and management modules in series, applied in the arrangement of multiple synchronous batteries, secondary batteries, charge balancing circuits, etc., can solve problems such as unreported
Active Publication Date: 2019-03-29
HUNAN UNIV OF SCI & TECH
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Problems solved by technology
However, most of these balancing technologies are used in the charging of the battery pack, and the application in the discharge process of the battery pack has not been reported so far.
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[0018] 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 creative efforts fall within the protection scope of the present invention.
[0019] See attached picture, figure 1 Is the overall structure block diagram of the present invention. A balance management module for an instrument's internal power supply series battery pack, including a detection and protection unit, a charging unit, a control unit, and a balance unit; Connection, used to judge the polarity of the charging power supply and the built-in series battery pack, and only when the polarity is connected correctly, the charging circuit is...
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The invention discloses a balance management module for a series battery pack for power supply inside an instrument. The balance management module is composed of a detection protecting unit, a charging unit, a control unit and a balancing unit, wherein the detection protecting unit and the balancing unit are used for feeding back the quantity and parameters of the connected monomer batteries; the control unit is used for selecting a charging mode of the charging unit according to the magnitude of a feedback signal of charging current detection and guaranteeing the voltage of each monomer battery in the balancing state in the charging and discharging processes; the control unit is equipped with anti-reverse protection for external voltage input and battery connection and charging over-current protection. The control unit adopted by the balance management module is used for detecting, intelligently deciding and controlling the charging process and performing balance management on the voltage of each monomer battery in the charging and discharging processes, an electrolytic capacitor is used as a balance energy transfer carrier and a decoder is used for controlling the selection for the to-be-balanced monomer battery, so that on the basis of realizing the safe, efficient and balancing charging and discharging, the related parameters of the built-in series battery pack can be supplied to the instrument simultaneously. The balance management module is suitable for the balance management of the series battery pack for power supply inside 2-8S instrument.
Description
technical field [0001] The invention relates to energy balance management of battery packs, in particular to a balance management module for battery packs connected in series for internal power supply of an instrument. Background technique [0002] Portable instruments are usually sampled with built-in series battery packs to provide energy. The role of batteries is self-evident. For an excellent portable instrument, longer standby and working time are undoubtedly an important indicator. Commonly used lithium battery packs are composed of multiple battery cells or single cells in series. Generally, S represents the number of cores in the battery pack or the number of single cells. The lithium battery pack is 3.7 volts per cell; if it is a 5S lithium battery pack, it is composed of A battery pack with a total voltage of 5x3.7=18.5 volts formed by connecting 5 single lithium batteries in series. However, due to the inconsistency of the single batteries in series, the effectiv...
Claims
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IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/441H02J7/0014H02J7/0026H02J7/00304H02J7/0034H02J7/0063H02J2007/0067Y02E60/10
Inventor 黄采伦南茂元王靖陈超洋周博文王安琪田勇军
Owner HUNAN UNIV OF SCI & TECH