Mobile parallel charging and series power supply electric appliance detection system and control method

Abstract

According to the mobile parallel charging and series power supply electric appliance detection system and the control method, under the condition that two storage batteries are connected in series, stable output of 12V voltage and 24V voltage can be achieved, excessive electric quantity loss caused by output of a single storage battery is avoided, the power supply time of the storage batteries is prolonged, and the overload capacity of the storage batteries is improved. And when the system is not used, the conversion handle is rotated to a 0V voltage gear, and at the moment, all electric appliance components of the system are powered off, so that the utilization rate of the electric quantity of the storage battery is improved. If the storage batteries need to be charged due to low electric quantity, the two storage batteries are converted into a parallel charging mode from an original series power supply mode, so that the storage batteries can reach the optimal charging state under the condition that the internal resistance and the loss electric quantity of the storage batteries are different, and the charger is automatically powered off after the storage batteries are fully charged; therefore, the service life of the storage battery is prolonged, the overload capacity of the system is improved, the use safety risk is reduced, the control method is simple and easy to operate, and an ideal technical effect is achieved.

Description

technical field [0001] The invention belongs to the field of battery charging and power supply control, and relates to a battery parallel charging and series power supply electrical detection system and control method, in particular to a mobile parallel charging and series power supply electrical detection system and control method. Background technique [0002] As we all know, the electrical inspection of the vehicle cab is the last test link of the cab offline. Under the premise of ensuring safety, the core of its detection is that the electrical detection system can output a stable test voltage, so as to ensure the reliability and stability of the detection of electrical components in the cab. However, since the storage position of the cab is not fixed after it is offline, a rechargeable electrical detection system is usually used. The electrical inspection system is integrated in a movable cabinet for easy on-site transfer testing. The electrical detection system is pr...

AI Technical Summary

Problems solved by technology

In practical applications, due to the small overload capacity of the intermediate relay, the relay will be overheated and damaged

In addition, the internal resistance and power loss of the two batteries are different, and the series charging method will also cause the battery to overcharge, reduce the service life of the battery, and even burn the battery, posing a greater safety risk

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