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Battery charging protection method and system

A battery charging and charger technology, which is applied in the field of battery charging protection methods and systems, can solve problems such as battery damage, battery overcharging, and fire, and achieve the effects of avoiding safety accidents, low-power standby, and improving safety

Inactive Publication Date: 2020-03-20
深圳市富源电电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a defect is: if there is a failure of the battery charging management system (BMS, BATTERY MANAGEMENT SYSTEM), it will cause the battery to be overcharged, cause battery damage, and even cause a fire, especially when unattended or sleeping at night. charging

Method used

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  • Battery charging protection method and system
  • Battery charging protection method and system
  • Battery charging protection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, in this embodiment, a battery charging protection method includes:

[0033] S10, connecting the switch circuit in series at the input end of the charger; connecting the output voltage detection circuit in parallel at the output end of the charger;

[0034] S20, judging whether the voltage detected by the output voltage detection circuit is greater than or equal to a preset voltage threshold, if so, S30, disconnecting the input terminal of the charger through the switch circuit;

[0035] Otherwise, S40. Close the switch circuit to make the charger charge the battery.

[0036] In this embodiment, the switch circuit realizes the low-power standby when the battery is not connected or reaches the full state, realizes the automatic disconnection of the charger from the electrical connection with the power grid, greatly improves the safety of battery charging, and avoids Safety accidents caused by overcharging or mismatch between the charger and th...

Embodiment 2

[0052] Such as Figure 6 As shown, a battery charging protection system is characterized in that it includes:

[0053] The charger is connected to the mains through a switch circuit, and charges the battery through the battery charging management system;

[0054] A switch circuit for controlling the opening and closing of the output terminal of the charger;

[0055] an output voltage detection circuit, used to detect the voltage at the output terminal of the charger, and control the state of the switch circuit according to the voltage;

[0056] The battery charge management system is used to monitor the state of charge of the battery.

[0057] In this embodiment, the switch circuit realizes the low-power standby when the battery is not connected or reaches the full state, realizes the automatic disconnection of the charger from the electrical connection with the power grid, greatly improves the safety of battery charging, and avoids Safety accidents caused by overcharging o...

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PUM

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Abstract

The invention relates to the technical field of battery charging, and discloses a battery charging protection method and system. The method comprises the following steps: enabling an input end of a charger to be in series connection with a switching circuit; the output end of the charger is connected in parallel with an output voltage detection circuit; judging whether the voltage detected by theoutput voltage detection circuit is greater than or equal to a preset voltage threshold or not, If so, disconnecting the input end of the charger through a switching circuit; otherwise, the switchingcircuit is closed, so that the charger charges the battery; through the switching circuit, low power consumption standby of the battery when the battery is not connected or reaches a full charge stateis realized, automatic disconnection of electrical connection between the charger and a power grid is realized, the safety of battery charging is greatly improved, and safety accidents caused by overcharge or mismatch between the charger and the battery are avoided.

Description

technical field [0001] The invention relates to the technical field of battery charging, in particular to a battery charging protection method and system. Background technique [0002] In battery charging technology, after the battery is fully charged, the electrical connection between the charger and the grid and the electrical connection between the battery and the charger are still maintained without human intervention. Such a defect is: if there is a failure of the battery charging management system (BMS, BATTERY MANAGEMENT SYSTEM), it will cause the battery to be overcharged, cause battery damage, and even cause a fire, especially when unattended or sleeping at night. charging. Contents of the invention [0003] The main purpose of the present invention is to propose a battery charging protection method and system, which realizes the low-power standby when the battery is not connected or reaches the full state through the switch circuit, and realizes the automati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/0032H02J7/0036Y02E60/10
Inventor 陈友花
Owner 深圳市富源电电源有限公司