Fully enclosed self-ventilation permanent magnet motor

A permanent magnet motor, self-ventilation technology, used in cooling/ventilation devices, synchronous motors with static armatures and rotating magnets, magnetic circuits, etc., can solve the problems of poor cooling performance, large losses, and low efficiency of permanent magnet motors problem, to achieve the effect of ingenious design and reasonable structure

Inactive Publication Date: 2016-12-07
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Fully enclosed self-ventilation permanent magnet motor
  • Fully enclosed self-ventilation permanent magnet motor

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Embodiment Construction

[0019] A fully enclosed self-ventilated permanent magnet motor, comprising a base 1, a front end cover 2, a rear end cover 3, a front bearing 4, a rear bearing 5, a stator structure, and a rotor structure; the stator structure includes a stator core 6, a stator winding 7 The stator winding 7 is wound on the stator core 6; the rotor structure includes a rotating shaft 8 and a rotor core 9; the rotor core 9 is fixedly assembled in the middle of the outer surface of the rotating shaft 8;

[0020] The end face of the machine base 1 is provided with an axial ventilation hole 10; the outer ring of the front end of the machine base 1 is sealed and fixed with the front end cover 2; the rear end face of the machine base 1 is sealed and fixed with the rear end cover 3;

[0021] The end face of the front end cover 2 is provided with an axial main air inlet hole 12; the outer front of the rotating shaft 8 is fixedly equipped with a main fan 13; a labyrinth seal is provided between the oute...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K9/06H02K1/27H02K1/02H02K7/04
CPCH02K1/02H02K1/2706H02K7/04H02K9/06H02K21/14
Inventor 贾喜勤李彩霞姬春霞倪伟刘永强
Owner CRRC YONGJI ELECTRIC CO LTD
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