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A device for charging protection of the battery unit and detection of the charging and discharging feature of the battery

A charge-discharge characteristic and battery pack technology, applied in battery circuit devices, secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve complex control circuits, increase battery pack cost, and inability to easily replace failed batteries And other problems, to avoid the effect of terminal voltage inconsistency

Inactive Publication Date: 2007-07-11
赵建和
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this solution, setting more than one redundant battery unit in the battery pack will inevitably increase the cost of the battery pack. When charging, it is necessary to manage the in-use battery and the redundant battery, and the control circuit is complicated. The redundant battery, the in-use battery and the detection and control The circuit is integrated together, and the failed battery cannot be easily replaced

Method used

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  • A device for charging protection of the battery unit and detection of the charging and discharging feature of the battery
  • A device for charging protection of the battery unit and detection of the charging and discharging feature of the battery

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Embodiment Construction

[0020] Referring to Fig. 1, this embodiment is a device for charging, maintaining and testing a battery pack with 4 batteries connected in series, and the maximum charging and discharging current is designed to be 2A.

[0021] According to Fig. 1, the device 12 for charging maintenance and detection of the battery pack is made, wherein the charging maintenance / detection selection switch 9 uses a single-pole double-throw mechanical switch, the transfer switch 7 uses a single-pole conversion 5V electromagnetic relay JQC-5F, and the microcontroller 8 uses an AT89S52 single-chip microcomputer, See Figure 3 to compile the control program of the microcontroller. A / D converter 6 uses TLV2556 12-bit 11-channel analog-to-digital conversion integrated circuit, signal conditioning circuit 5 uses LM358 analog amplifier and standard peripheral components to form 9 differential operational amplification channels, four of which are used to detect the voltage of each single battery , the magn...

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Abstract

This invention provides one device to charge and sustain battery set and to test battery discharge property, which can ensure series battery set each single cell end voltage even in end to terminate charging and to eliminate each cell initial status difference or the resulted in accordance of each cell for battery sustaining.

Description

Technical field [0001] The invention relates to a device for charging and maintaining a battery pack and detecting the charging and discharging characteristics of the battery. It can charge the battery pack in series and at the same time adjust the terminal voltage of each single battery in the battery pack in series to be consistent, and can automatically adjust the battery pack in series. The charging and discharging characteristics of each single battery in the battery pack are detected and analyzed, and the user is prompted to replace the single battery whose charging and discharging characteristics are seriously degraded or invalid. Battery packs suitable for handheld or mobile devices, especially suitable for high-power, large-capacity power battery packs, and belong to the electrical control category. Background technique [0002] The currently known method of charging a battery pack connected in series is to charge the connected battery pack as a whole. During the ch...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44H01M10/42H01M10/48G01R31/36
CPCY02E60/10
Inventor 赵建和
Owner 赵建和
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