Intelligent battery over-discharge failure protection device and method

A smart battery and failure protection technology, applied in battery circuit devices, circuit devices, and secondary battery repair/maintenance, etc., can solve the problem that smart batteries cannot return to normal working conditions, so as to improve user experience, reduce scrap, and reduce damage Effect

Active Publication Date: 2019-10-18
奇越科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a smart battery over-discharge failure protection device and method to solve the problem that the existing smart battery cannot return to the normal working state after severe over-discharge

Method used

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  • Intelligent battery over-discharge failure protection device and method

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Embodiment 1

[0051] Embodiment 1 of the present invention discloses a smart battery over-discharge failure protection device, the structural diagram is as follows figure 1 As shown, the device includes a battery pack, a charging and discharging interface, a control management unit, and a power supply module for the control management unit; wherein, the first input terminal of the power supply module of the control management unit is connected in parallel with the battery pack, and the second input terminal is connected with the power supply module of the control management unit. The charging and discharging interface is connected in parallel, and the output end is connected to the power input end of the control management unit; when the total voltage of the battery pack is higher than the minimum working voltage of the power supply of the control management unit, the battery pack is used to supply power to the control management unit; when the battery pack When the total voltage is lower th...

Embodiment 2

[0063] In Embodiment 2 of the present invention, a smart battery over-discharge failure protection method applied to external equipment is disclosed, and the corresponding flow chart is as follows image 3 As shown, the method includes the following steps:

[0064] Step S21: The external device sends an instruction to read the smart battery ID. If the external device does not receive a response within the set time, apply a voltage across the charging and discharging interface to supply power to the control management unit;

[0065] Step S22: The external device sends an instruction to read the smart battery ID again. If the smart battery ID is obtained, it is determined that the battery exists; if the smart battery ID is still not obtained, it is determined that the battery does not exist;

[0066] Step S23: After confirming that the battery exists, the external device sends an instruction to read the cell voltage sequence, and after reading the cell voltage sequence, perform ...

Embodiment 3

[0074] In Embodiment 3 of the present invention, an over-discharge failure protection method applied to a smart battery is disclosed, the method includes the following steps:

[0075] Step S31: The control management unit queries the internally stored smart battery ID according to the smart battery ID instruction sent by the external device, and sends the smart battery ID to the external device via the communication interface; the external device receives the smart battery ID After that, it is determined that the smart battery exists, and then the control and management of the smart battery is realized by sending instructions to the smart battery;

[0076] Step S32: The control management unit controls the cell voltage acquisition unit to collect the cell voltage sequence according to the instruction for reading the cell voltage sequence sent by the external device, and sends the cell voltage sequence to the external device via the communication interface;

[0077] Step S33: I...

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Abstract

The invention relates to an intelligent battery over-discharge failure protection device and method, belongs to the technical field of intelligent batteries, and solves the problem that an existing intelligent battery cannot recover to a normal working state after serious over-discharge. The device comprises a battery cell group, a charging and discharging interface, a control management unit anda control management unit power supply module. A first input end of the control management unit power supply module is connected in parallel with the battery cell group, a second input end is connected in parallel with the charge-discharge interface, and an output end is connected with a power input end of the control management unit. When the total voltage of the battery cell group is greater than the lowest working voltage of the power supply of the control management unit, the battery cell group supplies power to the control management unit; when the total voltage of the battery cell groupis less than the lowest working voltage of the power supply of the control management unit, external equipment connected in parallel to two sides of the charge-discharge interface supplies power to the control management unit. According to the device, when the control management unit stops working due to over-discharge of the intelligent battery, the intelligent battery can return to normal work through cooperation of external equipment.

Description

technical field [0001] The invention relates to the technical field of smart batteries, in particular to a smart battery over-discharge failure protection device and method. Background technique [0002] The smart battery management system will consume a certain amount of power consumption. Usually, the battery will be charged in time before the voltage is too low, so as to ensure the normal function of the battery management system. However, in actual use, the battery is often continuously over-discharged due to failure to charge the undervoltage battery in time, causing damage to the battery cell; especially after severe over-discharge, the battery control management unit stops working, making some smart batteries If the basic functions fail, such as the battery identification code function and communication function, the external device will judge that the smart battery does not exist. Especially for batteries that require authorized charging, the charging switch cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42
CPCH02J7/0029H01M10/425H01M2010/4271H02J7/0069H02J7/00306Y02E60/10
Inventor 庄晓群范晓军张涌涛
Owner 奇越科技(北京)有限公司
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