Fully enclosed self-ventilation permanent magnet motor

Abstract

The invention relates to permanent magnet motors, in particular to a fully enclosed self-ventilation permanent magnet motor. The fully enclosed self-ventilation permanent magnet motor provided by the invention solves the problems of poor cooling performance, limited application range, large dissipation, low efficiency, poor operation reliability, complex structure and large volume of the existing permanent magnet motors. The fully enclosed self-ventilation permanent magnet motor comprises an engine base, a front end cover, a rear end cover, a front bearing, a rear bearing, a stator structure and a rotor structure; an axial main air inlet hole, a main ventilation gap, an axial ventilation hole and an axial main air outlet hole constitute a main cooling air path structure together; an axial auxiliary air inlet hole, an auxiliary ventilation gap and an axial auxiliary air outlet hole constitute an auxiliary cooling air path structure together; and the rotor structure further comprises a front rotor pressure ring, a rear rotor pressure ring, a round nut, a front permanent magnet baffle, a rear permanent magnet baffle, a front permanent magnet baffle pressure ring, a rear permanent magnet baffle pressure ring, a front balancing block and a rear balancing block. The fully enclosed self-ventilation permanent magnet motor provided by the invention is suitable for various fields.

Description

technical field [0001] The invention relates to a permanent magnet motor, in particular to a fully enclosed self-ventilating permanent magnet motor. Background technique [0002] At present, permanent magnet motors have become an important development direction of new high-efficiency and energy-saving motors. However, practice has shown that the existing permanent magnet motors have the following problems due to the limitations of their cooling structure and rotor structure: First, the cooling structure of the existing motors mainly adopts the cooling method with its own fan (the rotating shaft drives the fan to blow the cooling air through the windshield hole. The cooling ribs on the outer surface of the frame, and then take away the heat generated by the motor through the cooling ribs), this cooling method cannot fully take away the heat generated inside the motor, resulting in poor cooling performance of the motor and limited scope of application. Second, the existing mo...

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Problems solved by technology

[0003] In order to solve the problems of poor cooling performance, limited application range, large loss, low efficiency, poor operation reliability, complex structure and large volume of existing permanent magnet motors, the present invention provides a fully enclosed self-ventilated permanent magnet motor

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