CN2317576Y

CN2317576Y - Rare earth permanent-magnet multiring synchronous motor

Info

Publication number: CN2317576Y
Application number: CN 97244365
Authority: CN
Inventors: 张志华; 张铁军
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-18
Filing date: 1997-11-18
Publication date: 1999-05-05
Anticipated expiration: 2007-11-18

Abstract

The utility model relates to a rare earth and permanent magnetic synchronous motor with multiple rings. The stator of the utility model is a silicon steel sheet which is distributed along a circumferential direction and is provided with winding troughs which are in a radial shape. The rotor of the utility model is composed of soft magnetic materials in the shape of a round disk, damping strips, and permanent magnetic materials and is arranged corresponding to the stator. The rotor and a shaft are connected by keys together for rotating. The disk-shaped rotor is provided with two layers of damping strip rings at least, and a plurality of permanent magnets are enchased in the damping strip rings. The utility model has the advantages of starting with load, large torque, and energy saving.

Description

Rare earth permanent magnet encircles synchronous machine more

The utility model relates to a kind of rare earth permanent magnet and encircles synchronous machine more, belongs to the improvement technology of permagnetic synchronous motor.Can be used for pump, the power source of blower fan and plant equipment is specially adapted to disc type pump, disc type blower fan and brake etc. as electromechanical integration.

The design people is to disclose a kind of disc type permanent magnet synchronous electric motor in " 92210571.5 " in the patent No., although these facility have the power factor height, and characteristics such as big torque, but still exist this worldwide technical barrier of synchronous machine load starting difficulty.

But the purpose of this utility model is to provide a kind of load starting, big torque, energy-conservation rare earth permanent magnet to encircle synchronous machine at the technical problem of above-mentioned existence more.

The purpose of this utility model realizes by following technical proposals:

Motor stator is the circumferentially uniform silicon steel sheet stator of slot for winding radially that has of an edge, and rotor adopts discoid soft magnetic material, amortisseur bar and permanent magnetic material to form, and is oppositely arranged with stator.Rotor and axle are with the key rotation that connects together.Described disk rotor is equipped with two-layer amortisseur bar ring at least, and inlays some permanent magnets in damping ring.

Add cage between the motor stator and rotor, establish inserts in the space that cage and stator end cap surround.

Motor shaft is fixed on the stator, and rotor rotates on fixed axis.

The utility model compared with prior art owing to adopted technical measures such as multilayer amortisseur bar ring, and through evidence have that load starts freely, big torque, power factor advantages of higher, can be widely used in each field.

Fig. 1 is the utility model embodiment 1 structural representation.

Fig. 2 is the utility model embodiment 2 structural representations.

Fig. 3 is the utility model main flux path profile.

Describe the utility model in detail below in conjunction with accompanying drawing:

Embodiment 1: as shown in Figure 1, motor stator 12 is along the circumferential uniform slot for winding radially that has, and winding 11 in the groove.Disk rotor 6 and amortisseur bar ring and permanent magnets 9 are formed the rotor of motors.Be that two-layer at least amortisseur bar ring is housed on the rotor 6, permanent magnets 9 is embedded in the amortisseur bar ring 8 on the rotor 6.Separate (also can not add cage) with cage 10 between rotor 6, the stator 12, rotor 6 fuses with axle 2 usefulness keys and is fixed on the cover 4 by rolling bearing 3, and cover 4 is packed on the housing 5.Stator is fixed on the end cap 13, is fixed together and forms a kind of rare earth permanent magnet with shell 5 on the end cap 13 and encircle synchronous machine more, and 14 is the stator inserts, and 1 is Simmer ring.

Embodiment 2: as shown in Figure 2, with basic identical on embodiment 1 structure, difference is rotation on the axle 2 of rotor 6 in being installed in stator end cap 13, and bearing 3 is a sliding bearing.

During the utility model work, after winding in the stator 11 passes to alternating current, in the iron core 12 of stator, produce rotating magnetic field, flux path as shown in Figure 3, magnetic field is passed air gap vertically and produce induced field in rotor 6, and these two magnetic field interactions affect rotor 6 to rotate along with the rotating magnetic field of stator core 12, again since inlay on the rotor 6 permanent magnets 9 under the stator field effect with rotor rotation, when rotor with enter after stator rotating magnetic field rotating speed is consistent synchronous.

Claims

1, a kind of rare earth permanent magnet encircles synchronous machine more, motor stator is the circumferentially uniform silicon steel sheet stator of slot for winding radially that has of an edge, rotor adopts discoid soft magnetic material, amortisseur bar and permanent magnetic material to form, be oppositely arranged with stator, rotor and axle are with the key rotation that connects together, it is characterized in that described disk rotor is equipped with two-layer amortisseur bar ring at least, and inlay some permanent magnets in damping ring, rotor adopts solid soft magnetic material.

2, a kind of rare earth permanent magnet according to claim 1 encircles synchronous machine more, it is characterized in that adding cage between the motor stator and rotor, establishes inserts in the space that cage and stator end cap surround.

3, a kind of rare earth permanent magnet according to claim 1 encircles synchronous machine more, it is characterized in that motor shaft is fixed on the stator, and rotor rotates on fixed axis.