Storage battery protective circuit

A technology for protecting circuits and storage batteries, applied in emergency protection circuit devices, electrical components, etc., can solve problems affecting battery capacity and life, increase plate resistance, etc., achieve protection capacity and life, prevent excessive discharge, and control stability and precision Effect

Active Publication Date: 2013-05-22
ZHEJIANG XINGHAI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take the lead-acid battery as an example, if the discharge is excessive, the lead sulfate crystal will form a larger body, which not only increases the resistance of the plate, but also makes it difficult to restore it during charging, which directly affects the capacity and life of the battery.

Method used

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Embodiment Construction

[0014] see figure 1 with figure 2 , a storage battery protection circuit, including a charging power supply, a battery 1 and a charging protection circuit 2, the charging power supply is connected to the storage battery through the charging protection circuit 2, and the storage battery is connected to the load 4 through the discharging protection circuit 3, not only during the charging process It can also prevent over-charging during the discharge process, ensure the normal use of the battery, and protect the capacity and life of the battery. The discharge protection circuit 3 includes a discharge comparator and an electronic switch I, the discharge comparator is connected to the electronic switch I and sends a control signal to it, and the non-inverting input terminal and the reverse input terminal of the discharge comparator are respectively connected to On the positive and negative poles of the battery, the electronic switch I is connected in series with the load 4 and co...

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PUM

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Abstract

The invention discloses a storage battery protective circuit. An existing storage battery only has charging protection and lacks discharging protection in a working process, and excessive discharging damages the capacity and the service life of the storage battery. The storage battery protective circuit comprises a charging source, a storage battery and a charging protection circuit. The charging source is connected with the storage battery through the charging protection circuit, and the storage battery is connected with a load through a discharging protection circuit. The charging source is connected with the storage battery through the charging protection circuit, the storage battery is connected with the load through the discharging protection circuit, excessive charging is prevented in a charging process, excessive discharging is prevented in a discharging process, the storage battery is guaranteed to be used normally and the capacity and the service life of the storage battery are protected.

Description

technical field [0001] The invention relates to the technical field of power circuits, in particular to a storage battery protection circuit. Background technique [0002] During the use of the battery, it goes through a charging process and a discharging process. The charging process is often protected by a protection circuit, but the discharging process lacks protection. When the battery is over-discharged, it will seriously damage the battery itself. Take the lead-acid battery as an example, if the discharge is excessive, the lead sulfate crystal will form a larger body, which not only increases the resistance of the plate, but also makes it difficult to restore it during charging, which directly affects the capacity and life of the battery. . Contents of the invention [0003] The invention provides a storage battery protection circuit, which can prevent the storage battery from overcharging and prevent the storage battery from over-discharging. [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/18
Inventor 费新华
Owner ZHEJIANG XINGHAI ENERGY TECH
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