Rotor plastic package mechanism of novel switched reluctance motor

Abstract

The invention discloses a rotor plastic package mechanism of a novel switched reluctance motor. The rotor plastic package mechanism comprises a rotor yoke part and a plurality of salient poles, wherein the plurality of salient poles are evenly distributed on the periphery of the rotor yoke part; rotor slots are arranged between adjacent salient poles; a plastic package body is arranged in each rotor slot; the outer side wall of each plastic package body is laminated with the inner side wall of the corresponding rotor slot; and a hollow inner cavity is formed in each plastic package body. Only the outside of the rotor slots is plastically packaged, so that the quality of a molding compound is reduced to the maximal extent while the plastic package strength is ensured; and the material cost of the motor is reduced.

Description

technical field [0001] The invention relates to a switched reluctance motor, in particular to a novel plastic sealing mechanism for a switched reluctance motor rotor. Background technique [0002] As a new type of motor, the switched reluctance motor has been fully used in many occasions. Because the rotor structure is very simple, there are no windings, magnets or magnetic rings on the rotor; the operating frequency of the rotor of the switched reluctance motor is the same as that of the stator. ;The switched reluctance motor only uses the reluctance torque of the motor, there is no permanent magnetic field, and high speed does not require magnetic field weakening; therefore, the switched reluctance motor is very suitable for high-speed applications. [0003] Such as figure 1 As shown, the rotor of the existing switched reluctance motor adopts a salient pole structure 20, so that when the motor is running, the wind friction loss of the motor will increase with the increase...

AI Technical Summary

Problems solved by technology

For high-speed motors, the wind friction loss ratio of the motor is relatively high, which seriously affects the efficiency of the motor

When the switched reluctance motor runs at high speed, the air inside the motor cavity is disturbed seriously, resulting in severe aerodynamic noise

[0004] In order to improve this problem, the rotor plastic seal of the traditional switched reluctance motor uses the integral plastic seal part 10 to fill the rotor groove, which increases the moment of inertia of the switched reluctance motor rotor and slows down the mechanical speed response of the switched reluctance motor , so that the motor has a mechanical hysteresis in applications such as rapid acceleration and deceleration, which is not convenient for the rapid control of the motor

At the same time, the overall plastic packaging will also increase the material cost of the switched reluctance motor

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