Urban rail vehicle storage battery pack online monitoring device

Abstract

An urban rail vehicle storage battery pack online monitoring device disclosed by the present invention comprises a line frame, a plurality of groups of joint assemblies and a main control unit, the line frame covers a storage battery cabinet, and each group of joint assembly comprises a positive electrode pressure joint, a negative electrode pressure joint and a temperature sensor. The anode pressure joint and the cathode pressure joint are respectively connected with the anode and the cathode of the storage battery and are used for acquiring the voltage and the internal resistance of the storage battery; the temperature sensor is used for measuring the cathode temperature of the storage battery in a contact manner; and information acquired by the positive electrode pressure joint, the negative electrode pressure joint and the temperature sensor is transmitted to the main control unit. The device has the advantages of being compact in structure, convenient to disassemble and assemble, capable of achieving real-time automatic collection of battery working condition data and the like.

Description

technical field [0001] The invention mainly relates to the technical field of rail transit, in particular to an on-line monitoring device for battery packs of urban rail vehicles. Background technique [0002] As one of the key components of the auxiliary power supply system of rail transit equipment, the battery pack is restricted by many factors such as operating temperature, humidity, and aging state. The quality of battery pack operation and maintenance is directly related to the safe operation of the vehicle. Due to its inherent chemical characteristics, the battery pack has problems such as capacity drop, voltage imbalance, and abnormal temperature during use. Therefore, operation and maintenance personnel need to maintain the battery pack regularly. However, in the current operation and maintenance process of battery packs, problems such as insufficient maintenance, poor pertinence, and lack of maintenance methods are common. In mild cases, the quality of the battery ...

AI Technical Summary

Problems solved by technology

However, in the current operation and maintenance process of battery packs, problems such as insufficient maintenance, poor pertinence, and lack of maintenance methods are common. In mild cases, the quality of the battery pack is damaged, the life is reduced, and the requirements for backup power supply cannot be met, and in severe cases, explosions and fires occur. Waiting for an accident

[0003] At present, the existing battery monitoring devices are commonly used in new energy vehicles, but most of the battery pack monitoring devices for urban rail vehicles can only monitor the voltage and current of the battery pack terminal, and in order to understand the battery pack The overall health status still needs regular manual inspection

[0004] Since there is a certain interval between manual inspections, when the battery pack fails during the interval, it will not be effectively reminded and passed to the operation and maintenance personnel, which will cause the failure to be discovered and eliminated in time and become a hidden danger

[0005] In addition, because the single batteries of urban rail vehicles are often used in series in groups, the abnormality of the single battery will cause the entire battery pack to fail to work normally, and most of the existing battery pack monitoring devices do not effectively monitor the state of the single battery, making the maintenance process difficult. It is difficult to locate the faulty battery block, which leads to low troubleshooting efficiency and inconvenience such as time-consuming and labor-intensive maintenance.

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