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Protective circuit for storage battery

A technology for protecting circuits and batteries, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of increasing plate resistance, affecting battery capacity and life, and achieve the effects of preventing excessive discharge, protecting capacity and life, and being easy to use

Inactive Publication Date: 2015-01-21
费新华
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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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  • Protective circuit for storage battery
  • Protective circuit for storage battery

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Experimental program
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Embodiment Construction

[0015] 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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Abstract

The invention discloses a protective circuit for a storage battery. In the work process of an existing storage battery, the storage battery only has charging protection but lacks discharging protection, and the capacity and service life of the storage battery will be damaged due to excessive discharging. The protective circuit for the storage battery comprises a charging power source, the storage battery and a charging protective circuit, wherein the charging power source is connected with the storage battery through the charging protective circuit, and the storage battery is connected with a load through a discharging protective circuit. The charging power source is connected with the storage battery through the charging protective circuit, the storage battery is connected with the load through the discharging protective circuit, excessive charging in the charging process can be prevented, excessive discharging in the discharging process can be also prevented, normal use of the storage battery is guaranteed, and the capacity and service life of the storage battery are protected.

Description

[0001] This application is a divisional application, the original application number is 2013100146460, the application date is January 15, 2013, and the title of the invention is a battery protection circuit. technical field [0002] The invention relates to the technical field of power circuits, in particular to a storage battery protection circuit. Background technique [0003] 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 inv...

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 费新华
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