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Fully-sealed forced air ventilating cooling structure of permanent magnet motor

A forced ventilation, permanent magnet motor technology, used in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problems of poor cooling performance and limited application scope of permanent magnet motors, and achieve poor cooling performance, reasonable structure, Cleverly designed effects

Active Publication Date: 2016-11-23
CHINA RAILWAYS CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of poor cooling performance and limited scope of application of existing permanent magnet motors, the present invention provides a fully enclosed forced ventilation cooling structure for permanent magnet motors

Method used

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  • Fully-sealed forced air ventilating cooling structure of permanent magnet motor
  • Fully-sealed forced air ventilating cooling structure of permanent magnet motor
  • Fully-sealed forced air ventilating cooling structure of permanent magnet motor

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Embodiment Construction

[0019] A fully enclosed forced ventilation cooling structure for a 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 The 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 face of the machine base 1 is sealed and fixed with the front end cover 2; the outer ring of the rear end face of the machine base 1 is sealed and fixed with the rear end cover 3;

[0021] The rear end face of the front end cover 2 is provided with a first annular boss 11 and a second annular boss 12, and the second annular boss 12 is positioned...

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Abstract

The invention relates to a cooling structure of a permanent magnet motor, in particular to a fully-sealed forced air ventilating cooling structure of the permanent magnet motor, which solves the problems of poor cooling property and limited application range of the existing permanent magnet motor. The fully-sealed forced air ventilating cooling structure of the permanent magnet motor comprises a machine base, a front end cap, a back end cap, a front bearing, a back bearing, a stator structure and a rotor structure; a radial air inlet hole, a third air ventilating gap, an axial air ventilating hole, a first air ventilating gap and a radial air outlet hole form a main cooling air path structure; an axial front air inlet hole, a second air ventilating gap and an axial front air outlet hole form a front auxiliary cooling air path structure; an axial back air inlet hole, a fourth air ventilating gap and an axial back air outlet hole form a back auxiliary cooling air path structure; front fan blades are fixedly arranged at the front end surface of a rotor iron core; back fan blades are fixedly arranged at the back end surface of the rotor iron core. The fully-sealed forced air ventilating cooling structure is suitable for the permanent magnet motor.

Description

technical field [0001] The invention relates to a cooling structure of a permanent magnet motor, in particular to a fully enclosed forced ventilation cooling structure of a 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 motor has the following problems due to the limitation of its cooling structure: the cooling structure of the existing permanent magnet motor mainly adopts the self-contained fan cooling method (the rotating shaft drives the fan to blow the cooling air to the outside of the machine base through the wind cover hole. The cooling ribs on the surface, and then take away the heat generated by the permanent magnet motor through the cooling ribs), this cooling method cannot fully take away the heat generated inside the permanent magnet motor, resulting in poor cooling...

Claims

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Application Information

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IPC IPC(8): H02K9/06H02K9/14H02K5/18H02K5/20
CPCH02K5/18H02K5/20H02K9/06H02K9/14
Inventor 贾喜勤姬春霞倪伟刘永强
Owner CHINA RAILWAYS CORPORATION
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