24V 12V Auxiliary battery for emergency starting of vehicle and ship and charging method of the same

摘要

The present invention discloses an emergency starting auxiliary battery device for 24V and 12V vehicles and ships utilizing a lithium battery series structure and a charging method therefor. The present invention is a technology for emergency start operation of a lithium battery 24V 12V internal combustion engine. 24V, 12V internal combustion engines include automobiles, trucks, buses, and ships. This technology enables common use of 24V and 12V in a single lithium battery series structure. In the case of 24V, a lithium battery is used by configuring 7EA in series, and in the case of 12V, only 4EA of the 7EA serial configuration can be used. When using a 12V vehicle for emergency start, the balance of the 7EA battery cell is broken because only the 4EA lithium battery is used. At this time, overcharging may occur when the entire charging is performed. In order to prevent this, it is a method of controlling the charging voltage and controlling the charging method. When the charger is connected, it is first divided into BATTERY B and A groups for charging. After checking the charging status, the last charging is performed. In addition, it includes a technology that detects and blocks short and reverse voltages during an emergency start. According to the present invention, when it is difficult to start the internal combustion engine due to discharging the battery in a confined space, it is necessary to extend the cable from the discharged battery to a wide space or to the vehicle driver's seat, and then use the emergency start auxiliary battery to start the internal combustion engine. It is a technology that allows you to do it.