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Battery charger, battery pack disconnection fault detection circuit

A fault detection circuit, battery charger technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve problems such as inability to connect wires and battery fault detection

Active Publication Date: 2022-08-02
威海凯瑞电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the technical problem that the existing power supply system cannot detect the faults of the connecting wires and batteries; it provides a battery charger and a battery disconnection fault detection circuit capable of detecting faults of the connecting wires and batteries

Method used

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  • Battery charger, battery pack disconnection fault detection circuit
  • Battery charger, battery pack disconnection fault detection circuit

Examples

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] like figure 1 As shown, the present invention includes a charger 1, a charger fault detection circuit unit 2, an isolation diode 3, a pulse charging control circuit unit 4, a battery fault detection circuit unit 5 and a rechargeable battery 6. The charger 1 passes through the isolation diode 3, pulse The charging control unit 4 is connected to the rechargeable battery 6 , the charger failure detection circuit unit 2 is connected to the charger 1 , and the battery failure detection circuit unit 5 is connected to the rechargeable battery 6 .

[0020] The charger failure detection circuit unit 2 is used to detect whether the output voltage of the charger 1 is normal.

[0021] The isolation diode 3 is used to prevent the rechargeable battery 6 from recharging the charger 1, so as to prevent the terminal voltage of the rechargeable battery 6 from recoiling when the output of ...

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Abstract

The invention provides a battery charger and battery pack disconnection fault detection circuit, which solves the technical problem that the existing power supply system cannot perform fault detection on the connecting wire and the battery; it includes a charger, a charger fault detection circuit unit, an isolation diode , a pulse charging control circuit unit, a battery fault detection circuit unit and a rechargeable battery; the charger is sequentially connected to the rechargeable battery through an isolation diode, a pulse charging control unit, the charger fault detection circuit unit is connected to the charger, and the battery fault detection circuit unit It is connected to the rechargeable battery; the charger fault detection circuit unit is used to detect whether the output voltage of the charger is normal; the pulse charging control circuit unit is used to provide the rechargeable battery with pulse charging voltage and current, and when the rechargeable battery is disconnected, the The rechargeable battery voltage is sampled during the cut-off window for pulse charging. The present invention is widely used in power supply systems.

Description

technical field [0001] The invention relates to a battery and a battery pack detection device, in particular to a battery charger and a battery pack disconnection fault detection circuit. Background technique [0002] At present, there are many power supply systems that need to use rechargeable batteries as backup power sources. Most of the time, the rechargeable batteries are in a floating state, and the backup power supply will only be put into use after the main power supply is powered down. In most cases, the charger will not be tested. If the charger fails, the rechargeable battery will be in a state of self-discharge, which will cause irreversible life damage or even be directly scrapped after a long time. [0003] The rechargeable battery is used as a backup power supply, and there is a connection line between the rechargeable battery and the load. If the connection line is disconnected and the battery is not detected in the system, it will cause that when the main po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0029H02J7/0034H02J7/0036
Inventor 刘国锋张杰
Owner 威海凯瑞电气股份有限公司
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