The invention relates to a hall permanent
magnet brushless high-speed
direct current motor for a vacuum molecular pump. The hall permanent
magnet brushless high-speed
direct current motor comprises a motor rotor and a motor
stator, wherein the motor rotor comprises an
alloy steel mandrel, a permanent
magnet and an
alloy sheath; the motor
stator comprises a
stator core, a solenoid winding, an outgoing line, a
hall element, a hall sensor, a hall circuit board, a hall mounting base,
epoxy resin and an outer motor sleeve; the hall mounting base is located at one side, toward the outgoing line, of the stator core; a pin of the
hall element is welded to the hall circuit board; a
copper screen shielding layer coats the periphery of the hall circuit board; the opposite position of the hall sensor is rigidly fixed through the hall mounting base; a
signal line of the hall sensor is arranged at one end of the outgoing line; a heavy-current motor three-phase current outgoing line is arranged at the other end of the outgoing line; a shield protection sleeves the outgoing line of the hall sensor; the motor stator is filled and sealed by the
epoxy resin after being installed; and the outer motor sleeve is used for ensuring the
assembly accuracy of the motor stator.