Battery management protection system of pruning machine

Abstract

The invention discloses a battery management protection system of a pruning machine, and the system comprises a main loop consisting of a battery pack and a motor, and a protection circuit is arranged in the battery pack. The system is characterized in that the system also comprises a control unit; a sampling identification load module is arranged between the battery pack and the control unit, and the sampling identification load module is connected with the main loop; the main loop is also provided with a switch device, and the switch device is connected with the control unit; the sampling identification load module sends battery information collected by the protection circuit and load type information collected by the main loop to the control unit, and when the battery information or the load type information is abnormal, the control unit controls the switching device to be switched off so as to protect the battery pack. According to the invention, the switching device can be controlled to be switched off by receiving abnormal battery information or load type information, so the main loop is powered off, the battery pack is further protected, and the safety and reliability of operation of the system are ensured.

Description

technical field [0001] The invention relates to the technical field of garden tools, in particular to a battery management and protection system for a pruning machine. Background technique [0002] Batteries have been widely used in many garden tools such as lawn mowers, electric drills, grinders, and pruning machines, making traditional wired devices gradually replaced by wireless lithium battery power supply systems. The wireless lithium battery power supply system provides users with great field working conditions. In order to ensure the safe operation of garden tools, it is necessary to protect the battery pack to avoid undervoltage, overtemperature, and overcurrent of the battery pack. Existing battery packs usually use temperature insurance to ensure that the battery pack is not overheated; use current insurance (fuse) to prevent short circuit and overcurrent phenomena in the battery pack; and use diodes to ensure the safety of the battery pack from over-discharging a...

AI Technical Summary

Problems solved by technology

There are two disadvantages of this protection method: one is that when the battery pack is short-circuited, over-current or improper operation causes the battery pack to short-circuit, after the fuse is blown, the fuse needs to be replaced manually, which is cumbersome; The battery pack needs to be sealed. After the fuse is blown, the fuse cannot be replaced, and the battery pack can only be scrapped, causing unnecessary waste

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