Anti-sparking method for power tool, and control device, and computer-readable storage medium

A control device for controlling a power tool;

• the power tool comprises a power module, a motor, a controlling switch, a motor driving module, and a MCU module, wherein the control device with an anti-sparking function, the control device comprises:
• a first processing module configured to detect a signal generated by the controlling switch;
• when the first processing module determines that the controlling switch is turned on according to the signal, and MCU module records a first operation state of the motor, which is a forward rotation state A or a reverse rotation state B;
• a second processing module configured to detect the signal generated by the controlling switch;
• when the second processing module determines that the controlling switch is turned off according to the signal, the motor begins to stop rotating, and the MCU module records a time duration from a time point of the motor being begun to stop rotating to a time point of the motor completely stopped rotating, as t1;
• a third processing module configured to detect the signal generated by the controlling switch;
• when the third processing module determines that the controlling switch is turned on again according to the signal, the MCU module records a second operation state of the motor;
• when the second operation state is the same as the first operation state, the third processing module controls the power module to supply power to the motor driving module;
• when the second operation state is different from the first operation state, the third processing module controls the power module to supply power to the motor driving module after a delay time duration, which is longer than t1.

A computer readable storage medium used in a power tool, the power tool comprises a power module, a motor, a controlling switch, a motor driving module, and a MCU module;

• the computer readable storage medium having non-volatile program codes executable by a processor, wherein the program codes are used to make the processor execute the following steps:
• (1) turning on the controlling switch to control the power module supply power to the motor driving module for driving the motor to rotate, which causes the power tool to work normally;
• when the power tool is working normally, the MCU module records a first operation state of the motor, which is a forward rotation state A or a reverse rotation state B;
• (2) when the controlling switch is turned off, the power module cannot supply power to the motor driving module, which causes the motor to begin to stop rotating;
• when the motor begins to stop rotating, the MCU module records a time duration as t1 from a time point of the motor being begun to stop rotating to a time point of the motor completely stopped rotating;
• (3) when the controlling switch is turned on again, the MCU module records a second operation state of the motor;
• the second operation state is the forward rotation state A or the reverse rotation state B;
• when the second operation state is the same as the first operation state, the MCU module controls the power module to supply power to the motor driving module;
• when the second operation state is different from the first operation state, the MCU module controls the power module to supply power to the motor driving module after a delay time duration, which is longer than t1.