The utility model discloses a self-suction heat dissipation blower suitable for
high humidity and high salt
fog environment, which comprises a motor, a blower head and a cabinet, the motor comprises a motor rotor, a motor
stator, a first bearing, a second bearing, a bearing seat, an inner bearing seat, an outer bearing seat, a steel shell, a heat dissipation shell and a motor rear cover, the fan head comprises a
volute, an
impeller, a cover cap, a main
machine end cover and sealing teeth, the
impeller is installed on the portion, exceeding the bearing seat, of the motor rotor, the
impeller is located in a space defined by the
volute, the cover cap, the main
machine end cover and the bearing seat after installation, and the sealing teeth are formed on the main
machine end cover. The machine cabinet comprises a machine cabinet main body and an air
inlet flow guide box installed in the machine cabinet main body, the impeller does work, negative pressure is formed at the inlet of the cover cap to drive air in the machine cabinet to flow, and stable air flow from the air
inlet flow guide box to the heat dissipation shell of the motor to the inlet of the cover cap to the impeller to the
volute to the outlet of the volute is formed; and heat of the motor is blown to the outer side of the cabinet.