Anti-blocking system and anti-blocking method

Abstract

The invention provides an anti-blocking system and an anti-blocking method, and belongs to the field of electric tools. According to the anti-blocking system, a current monitoring branch and a control module work cooperatively to detect and monitor the working current value of an electric drill at the moment, meanwhile, when the current exceeds a threshold value, a motor stops rotating, then a reverse pulse is output in the circuit, the motor is suddenly driven to rotate reversely with a large pulse current, the motor stops immediately, and meanwhile, a forward high electric pulse is added immediately, so that the motor can generate an instant large torque to be accelerated through a buffer distance to obtain a large momentum to impact the position where the drill bit is blocked previously, the problem of blockage of the drill bit of the electric drill is solved, and the service life of the drill bit is prolonged. In addition, the electric drill can be replaced by a saw grinding type electric tool in an extending mode, and the drill bit can be replaced by a rotary or reciprocating cutting working head such as a saw blade.

Description

technical field [0001] The invention relates to an anti-blocking system, in particular to an anti-blocking system and an anti-blocking method, belonging to the field of electric tools. Background technique [0002] For common electric tools, electric drills are often used for drilling, which is also the origin of the name electric drill. At present, the electric drills sold on the market are basically DC lithium electric drills. [0003] There is usually a lithium battery protection board inside the DC lithium electric drill. Of course, there is also the practice of integrating the function of the lithium battery protection board into the switch or the protection board inside the battery pack. In short, the function of the lithium battery protection board must exist in a complete lithium battery electric drill. [0004] Usually when users are drilling, they often encounter the situation that the drill bit is stuck. After the drill bit is stuck, the electric drill will of...

AI Technical Summary

Problems solved by technology

After the drill bit is stuck, the electric drill will often stop working, but if you press the switch again, it will often still be unable to continue working because the drill bit is stuck.

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