US Patent 11788538 Blower having multiple control switches

A blower includes an air tube, an electric motor, a fan, a housing, and a circuit board. The air tube is provided with an air duct extending along a first straight line. The electric motor is arranged in the air duct. The fan is operative to be driven by the electric motor. The housing is provided with a handle configured to be held by a user and a joining portion configured for connecting to a power source. And the circuit board is electrically connected to the electric motor. The air tube is provided with an air inlet at one end of the air duct and an air outlet at another end of the air duct. The fan is arranged in the air duct, and when the fan rotates, a blowing airflow entering the air duct from the air inlet is generated.