Battery safety protection system and processing method

Abstract

The disclosure provides a battery safety protection system and processing method, which relate to the field of battery technology, wherein the battery safety protection system includes: an active fuse module, an isolating switch module and a control device; the active fuse module is connected in the battery circuit; the control device controls The isolating switch module performs an opening or closing operation; after the isolating switch module performs a closing operation, the energy source connected to the isolating switch module outputs cut-off power to the active fuse module through the isolating switch module, so that the active fuse module is disconnected for disconnection battery circuit. The battery safety protection system and processing method of the present disclosure can realize the function of actively disconnecting the active fuse module through the output power of the isolation component, can detect the driving signal and the state of the active fuse module, improve the safety of the battery and can better protect the personal safety of users.

Description

technical field [0001] The present disclosure relates to the technical field of batteries, in particular to a battery safety protection system and processing method. Background technique [0002] The replacement of fuel vehicles by electric vehicles has become the development trend of the automobile industry. Due to the high power of electric vehicle motors, the battery packs currently used are usually high-voltage low-current or low-voltage high-current battery packs. The voltage of the battery pack usually exceeds the safe voltage, so the battery pack needs to be separated from the outside. At present, controllable switching devices (such as relays, IGBTs (Insulated Gate Bipolar Transistors, insulated gate bipolar transistors), etc.) are usually used as devices to control high-voltage on-off under normal circumstances, and fuses are connected in series in the high-voltage circuit as emergency conditions. disconnect device. The traditional solution relies on insurance and...

AI Technical Summary

Problems solved by technology

The traditional solution relies on insurance and switching devices (such as relays, IGBTs, etc.), but usually only one fuse is set on the positive or negative pole in the high-voltage system. If the relay fails to disconnect, even if the fuse blows, the other pole of the high voltage will exists output

For example, in the case of a vehicle collision, a large current will often flow through the relay. At this time, the relay is forcibly disconnected, which will cause damage to the relay and adhesion, resulting in high voltage that cannot be disconnected.

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