CN201181867Y

CN201181867Y - Permanent-magnet motor rotor

Info

Publication number: CN201181867Y
Application number: CNU2008200980565U
Authority: CN
Inventors: 肖战龙; 童怀
Original assignee: Guangdong Welling Motor Manufacturing Co Ltd
Current assignee: Guangdong Welling Motor Manufacturing Co Ltd
Priority date: 2008-04-07
Filing date: 2008-04-07
Publication date: 2009-01-14
Anticipated expiration: 2018-04-07

Abstract

The utility model relates to a permanent-magnetic motor rotor, which comprises a rotor shaft (1), an inner rotor iron core (2) that is fixed on the rotor shaft, an outer rotor iron core (4) that is arranged on the circumference of the inner rotor iron core (2), and a plurality of magnetic shoes (3) that are arranged on the outer circumference of the outer rotor iron core (4), and is characterized in that the outer rotor iron core (4) is connected with the inner rotor iron core (2) through a plurality of rubber rods (5). The outer rotor iron core of the rotor is connected with the inner rotor iron core through a plurality of rubber rods, thereby not only can bear large torque, but also having strength and elasticity because of the rubber rod, and greatly reducing the mechanical shaking and noise.

Description

A kind of permanent-magnet electric machine rotor

Technical field:

The utility model is a kind of permanent-magnet electric machine rotor, particularly a kind of permanent-magnet electric machine rotor that is applicable to by electronically controlled high-power DC brushless motor.

Background technology:

Tradition is used for the p-m rotor by electronically controlled high-power DC brushless motor, two kinds of structures are generally arranged, a kind of is the rigid structure rotor, another kind is full rubber structure rotor, the rigid structure rotor can't be eliminated the mechanical oscillation and the noise of motor, and is more obvious in high-power permanent magnet motor especially, and full rubber structure rotor is an elastic rotor, certain elastic buffer and noise reduction effect are arranged, but full rubber structure rotor can not bear big torque and be not suitable for high-power permanent magnet motor.

The utility model content:

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of and not only can bear big torque, and can reduce the mechanical oscillation of motor and the permanent-magnet electric machine rotor of noise.

The technical solution of the utility model: a kind of permanent-magnet electric machine rotor, comprise armature spindle, be packed in internal rotor iron core on the armature spindle, place internal rotor iron core periphery outer rotor iron core, be installed in a plurality of magnetic shoes on the outer rotor iron core excircle, described outer rotor iron core links together by a plurality of rubber bars and internal rotor iron core.

The inner periphery of above-mentioned outer rotor iron core be provided with a plurality of in to groove, be provided with a plurality of export-oriented grooves to groove in corresponding on the excircle of internal rotor iron core, rubber bar is tightly packed in by interior in groove and export-oriented groove are harmonious the cylinder groove that forms.

Outer rotor iron core of the present utility model links together by a plurality of rubber bars and internal rotor iron core, not only can bear big torque, and because rubber bar has certain intensity and elasticity, has significantly reduced mechanical shock and noise.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of outer rotor iron core of the present utility model;

Fig. 3 is the structural representation of internal rotor iron core of the present utility model.

Embodiment:

As shown in Figure 1, 2, 3, present embodiment permanent-magnet electric machine rotor, comprise armature spindle 1, be packed in internal rotor iron core 2 on the armature spindle, place internal rotor iron core 2 peripheries outer rotor iron core 4, be installed in 12 magnetic shoes 3 on outer rotor iron core 4 excircles, described outer rotor iron core 4 links together by 6 rubber bars 5 and internal rotor iron core 2.

In the present embodiment, the inner periphery of above-mentioned outer rotor iron core 4 is provided with in 6 to groove 41, be provided with 6 export-oriented grooves 21 to groove 41 in corresponding on the excircle of internal rotor iron core 2, rubber bar 5 is tightly packed in by interior in groove 41 and export-oriented groove 21 are harmonious the cylinder groove that forms.

Claims

1, a kind of permanent-magnet electric machine rotor, comprise armature spindle (1), be packed in internal rotor iron core (2) on the armature spindle, place internal rotor iron core (2) periphery outer rotor iron core (4), be installed in a plurality of magnetic shoes (3) on outer rotor iron core (4) excircle, it is characterized in that described outer rotor iron core (4) links together by a plurality of rubber bars (5) and internal rotor iron core (2).

2, permanent-magnet electric machine rotor according to claim 1, the inner periphery that it is characterized in that above-mentioned outer rotor iron core (4) is provided with a plurality of interior to groove (41), be provided with a plurality of export-oriented grooves (21) to groove (41) in corresponding on the excircle of internal rotor iron core (2), rubber bar (5) is tightly packed in by interior in groove (41) and export-oriented groove (21) are harmonious the cylinder groove that forms.