CN203261213U

CN203261213U - Rotor structure of superspeed PMSM with weftless tape-fixed magnetic steel

Info

Publication number: CN203261213U
Application number: CN 201320249597
Authority: CN
Inventors: 张鹏; 张宙; 刘子峰
Original assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Current assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Priority date: 2013-05-09
Filing date: 2013-05-09
Publication date: 2013-10-30
Anticipated expiration: 2023-05-09

Abstract

A rotor structure of a superspeed PMSM with weftless tape-fixed magnetic steels comprises a plurality of magnetic steels, wedges, a pressure plate, weftless tapes and a magnet yoke arranged on a rotor shaft; the plurality of magnet steels are arranged circle-by-circle on the magnet yoke in an axial direction; each circle of magnetic steel is uniformly provided with a plurality of wedges fixed on the magnet yoke through screws for positioning; and each circle of the magnetic steel is encircled on the magnet yoke through the weftless tape. The structure employs the weftless tapes to encircle the magnetic steels on the magnet yoke, and the weftless tapes are baked and solidified to reinforce connections with the magnetic steels, so the magnetic steels cannot loosen or disengage by mutual effects of the magnetic force, thereby preventing conditions of affecting the motor performance and damaging the motor.

Description

The ultrahigh speed permagnetic synchronous motor is without the fixing rotor structure of magnet steel of latitude band

Technical field

The utility model belongs to machine field, relates in particular to a kind of ultrahigh speed permagnetic synchronous motor without the fixing rotor structure of magnet steel of latitude band.

Background technology

Because the body of ultrahigh speed permagnetic synchronous motor is huger, when mounting magnetic steel, magnetize if will assemble afterwards first, then need magnetizing equipment to have a large amount of magnetizing coils, and existing magnetizing equipment does not possess a large amount of magnetizing coils, can't satisfy and assemble first the demand that magnetizes afterwards, therefore, can only be with abampere dress magnet steel, and can produce new problem with the abampere dress:, after installation, interact because of magneticaction easily with the magnet steel of magnetic, and produce loosening, affect the performance of ultrahigh speed permagnetic synchronous motor, even come off and damage motor.

The utility model content

Based on this, for above-mentioned technical problem, provide a kind of ultrahigh speed permagnetic synchronous motor without the fixing rotor structure of magnet steel of latitude band.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of ultrahigh speed permagnetic synchronous motor is without the fixing rotor structure of magnet steel of latitude band, comprise a plurality of magnet steel, voussoir, pressing plate, without the latitude band and be located at yoke on the armature spindle, the axial from coil to coil of described a plurality of magnet steel is located on the described yoke, evenly be provided with in every circle magnet steel and a plurality ofly be fixed on the voussoir of the location usefulness on the yoke by screw, and every circle magnet steel is located on the described yoke without the latitude strap by described.

Described magnet steel is isosceles triangle, its two ends are respectively equipped with one and are used for binding round the recess of establishing without the latitude band, the recess of axial adjacent magnet steel is spliced to form for hoop and establishes groove without the latitude band, in the described recess and the groove between adjacent magnet steel of being located at first circle and the circle magnet steel outside, end without the latitude strap.

The utility model is by being located at the magnet steel hoop on the yoke without the latitude band, and by to without latitude band baked and cured, reinforce its with magnet steel between be connected, magnet steel can not become flexible because of magnetic interaction, even the problem that comes off, the situation of having avoided affecting motor performance and damaging motor occurs.

Description of drawings

Be elaborated below in conjunction with the drawings and specific embodiments the utility model:

Fig. 1 is a kind of ultrahigh speed permagnetic synchronous motor of the present utility model without the fixing structural representation of the rotor structure of magnet steel of latitude band;

Fig. 2 is a kind of ultrahigh speed permagnetic synchronous motor of the present utility model without the fixing radial section schematic diagram of the rotor structure of magnet steel of latitude band.

Embodiment

Such as Fig. 1 and shown in Figure 2, a kind of ultrahigh speed permagnetic synchronous motor is without the fixing rotor structure of magnet steel of latitude band, comprises a plurality of magnet steel 110, voussoir 120, pressing plate 130, without latitude band 140 and be located at yoke 150 on the armature spindle.

A plurality of magnet steel 110 axial from coil to coils are located on the yoke 150, evenly are provided with the voussoir 120 of a plurality of location usefulness in every circle magnet steel, and logical the hoop without latitude band 140 of every circle magnet steel is located on the yoke 150.

Particularly, magnet steel 110 is isosceles triangle, its two ends are respectively equipped with one and are used for binding round the recess 111 of establishing without latitude band 140, the recess of axial adjacent magnet steel is spliced to form for hoop and establishes groove 112 without the latitude band, be located in the recess 111 in first circle and the circle magnet steel outside, end and the groove between adjacent magnet steel 112 without latitude band 140 hoop, avoided without axial loosening of latitude band.

Voussoir 120 can be fixed on the yoke 150 by screw.

Wherein, be 6mm without the thickness of latitude band, width 〉=20mm.

Can be connected with magnet steel 110 baked and cured without latitude band 140, stoving temperature is no more than 150 ℃, and is as a whole without 110 one-tenth of latitude band 140 and magnet steel after the baked and cured, makes without the latitude band axially and radially all be not easy to become flexible.

Assembling process of the present utility model is as follows:

By magnet steel 110 hoop-drivings being fixed on the yoke 150 of armature spindle without latitude band 140, magnet steel 140 is axial from coil to coil layout on yoke 150, and a plurality of voussoirs 120 evenly are set in every circle magnet steel, so that magnet steel 110 is positioned; Certainly, when assembling magnet steel 110, the polarity that should test first magnet steel 110 avoids magnet steel 110 oppositely to install.

Wherein, magnet steel 110 is isosceles triangle, and its two ends are respectively equipped with one and are used for hoop-driving without the recess 111 of latitude band, and the recess 111 of axial adjacent magnet steel is spliced to form for the groove 112 of hoop-driving without the latitude band.

Particularly, by on the yoke 150 that magnet steel 110 hoop-drivings is fixed to armature spindle without latitude band 140 time, need to be in the outer recess hoop-driving of first circle and end circle magnet steel, and hoop-driving in the groove between adjacent magnet steel, so just avoided without 140 axial the becoming flexible of latitude band.

Wherein, hoop-driving pulling force 〉=1.2KN, hoop-driving thickness 6mm, hoop-driving width 〉=20mm.

To curing without 140 heating of latitude band, make its curing, stoving temperature is no more than 150 ℃, and is as a whole without 110 one-tenth of latitude band 140 and magnet steel after the baked and cured, makes without latitude band 140 axially and radially all be not easy to become flexible.

Pressing plate 130 is installed respectively in the magnet steel outside at first circle and end circle, is used at axial reinforcement magnet steel 110.

Ultrahigh speed permagnetic synchronous motor rotating speed generally can reach 6500r/min.

But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims

1. a ultrahigh speed permagnetic synchronous motor is without the fixing rotor structure of magnet steel of latitude band, it is characterized in that, comprise a plurality of magnet steel, voussoir, pressing plate, without the latitude band and be located at yoke on the armature spindle, the axial from coil to coil of described a plurality of magnet steel is located on the described yoke, evenly be provided with in every circle magnet steel and a plurality ofly be fixed on the voussoir of the location usefulness on the yoke by screw, and every circle magnet steel is located on the described yoke without the latitude strap by described.

2. a kind of ultrahigh speed permagnetic synchronous motor according to claim 1 is without the fixing rotor structure of magnet steel of latitude band, it is characterized in that, described magnet steel is isosceles triangle, its two ends are respectively equipped with one and are used for binding round the recess of establishing without the latitude band, the recess of axial adjacent magnet steel is spliced to form for hoop and establishes groove without the latitude band, in the described recess and the groove between adjacent magnet steel of being located at first circle and the circle magnet steel outside, end without the latitude strap.