CN103762805A

CN103762805A - Shade pole type single-phase alternating current asynchronous motor with low vibration torque

Info

Publication number: CN103762805A
Application number: CN201410027099.4A
Authority: CN
Inventors: 冯浩; 赵浩; 丁立军
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2014-01-21
Filing date: 2014-01-21
Publication date: 2014-04-30

Abstract

The invention discloses a shade pole type single-phase alternating current asynchronous motor with low vibration torque, and particularly relates to a shade pole type composite single-phase alternating current asynchronous motor. The shade pole type single-phase alternating current asynchronous motor with low vibration torque comprises a rear end cover, a rear bearing, a machine seat, a 1# stator core, a 1# rotor core, a 1# stator winding, a 2# stator winding, a 2# stator core, a 2# rotor core, a 2# stator winding, a front end cover, a front bearing, a rotation shaft, a 1# rotor winding, a 2# rotor winding and a phase-shift capacitor. The shade pole type composite single-phase alternating current asynchronous motor enables the vibration torque generated by two sets of shade pole type motors to right differ by an electrical angle of 180 degrees, and achieves the purpose of restraining the vibration torque through mutual compensation of positive and negative components of the vibration torque. If two generated vibration torque amplitude values are the same, the vibration torque is completely restrained. Besides, due to the fact that a branch circuit and a home circuit of a 2# motor with a series capacitor are capacitive, the power factor of the formed composite motor is higher than the power factors of the two original motors.

Description

A kind of shaded-pole single-phase ac asynchronous motor of low Vibration Torque

Technical field

The present invention relates to a kind of single phase alternating current (A.C.) shaded-pole asynchronous motor, specifically, relate to the shaded-pole single-phase ac asynchronous motor of low Vibration Torque.

Background technology

Single phase alternating current (A.C.) shaded-pole asynchronous motor, due to simple in structure be to use at present one of maximum motor, but because the generation of rotating magnetic field is based upon on the basis that split-pole winding is set, so, there is serious ovality, the Vibration Torque that motor existence in service is serious in the rotating magnetic field producing.So far the method not had for the reduction of Vibration Torque.In the actual use of motor, Vibration Torque is equivalent to an exciting source, can make whole driven system produce vibration and noise.

Summary of the invention

The object of the invention is for the deficiencies in the prior art, proposed a kind of shaded-pole single-phase ac asynchronous motor of low Vibration Torque.

The present invention is achieved through the following technical solutions:

A kind of shaded-pole single-phase ac asynchronous motor of low Vibration Torque, comprise rear end cap, rear bearing, support, 1# stator core, 1# rotor core, 1# stator winding, 2# stator core, 2# rotor core, 2# stator winding, front end housing, fore bearing, rotating shaft, 1# rotor winding and 2# rotor winding;

Described 1# stator core, 2# stator core is fixed in support, 1# stator winding is embedded in 1# stator core, 2# stator winding is embedded in 2# stator core, 1# rotor winding is fixed on 1# rotor core, 2# rotor winding is fixed on 2# rotor core, rotor winding is cage modle winding, fore bearing is fixed on front end housing inner side with one heart, rear bearing is fixed on rear end cap inner side with one heart, 1# rotor core, 2# rotor core is fixed in rotating shaft, one end and the rear bearing of rotating shaft are fixed, the other end and fore bearing are fixed, and pass through rear end cap, front end housing is fixed on the inner side of stator core with one heart, and 1# rotor core and 1# stator core are axially aligned, 2# rotor core and 2# stator core are axially aligned, 1# rotor core can be with respect to 1# stator core, 2# rotor core can be rotated with respect to 2# stator core, when 1# rotor aligns vertically with the cage-type rotor winding groove winding of 2# rotor, and 1#, the rotating magnetic field direction of rotation that 2# stator produces is identical, the fundametal compoment of the air-gap field that two cover shaded-pole monopole asynchronous motors the produce 90 ° of electrical degrees that stagger mutually on circuferential spacing.

In electrical connection, wherein the stator winding M2 of 2# shaded-pole single-phase ac asynchronous motor connects with shift capacitor C, and in parallel with 1# shaded-pole single-phase ac asynchronous motor stator winding M1, be connected on single phase alternating current power supply, the voltage-phase that makes to be added on 1# and 2# shaded-pole single-phase ac asynchronous motor stator winding produces phase shift, and 90 ° of electrical degrees of voltage-phase mutual deviation.

Beneficial effect of the present invention: the compound single-phase ac asynchronous motor of shaded-pole of the present invention, the Vibration Torque that two cover shadedpole motors are produced is 180 ° of electrical degrees of mutual deviation just in time, by the positive and negative component of Vibration Torque, are mutually compensated and are reached the object that suppresses Vibration Torque; Two Vibration Torque amplitudes that produce are identical, and Vibration Torque is suppressed completely.And because the 2# motor outlet of serial capacitors is capacitive, the power factor of the compound motor forming will be higher than former two motor power (output) factors.

Accompanying drawing explanation

Fig. 1 is the shaded-pole single-phase ac asynchronous motor structural representation of low Vibration Torque;

Fig. 2 is the Vibration Torque oscillogram that two cover motors produce;

Fig. 3 is the shaded-pole single-phase ac asynchronous motor two cover motor stator winding electrical schematic diagrams of low Vibration Torque;

Fig. 4 is the relative position figure that the shaded-pole single-phase ac asynchronous motor two of low Vibration Torque overlaps the stator field of motors.

Embodiment

Below in conjunction with accompanying drawing, further describe enforcement of the present invention.

As shown in Fig. 1, Fig. 3, Fig. 4, a kind of single phase alternating current (A.C.) shaded-pole asynchronous motor of low Vibration Torque, comprise rear end cap 1, rear bearing 2,

support

3,1#

stator core

4,1#

rotor core

5,1# stator winding 6,2#

stator core

7,2#

rotor core

8,2# stator winding 9, front end housing 10, fore bearing 11, rotating shaft 12,1# rotor winding 13 and 2# rotor winding 14;

Described 1

# stator core

4, 2# stator core 7 is fixed in

support

3, 1# stator winding 6 is embedded in 1#

stator core

4, 2# stator winding 9 is embedded in 2#

stator core

7, 1# rotor winding 13 is fixed on 1#

rotor core

5, 2# rotor winding 14 is fixed on 2# rotor core 8, rotor winding is cage modle winding, fore bearing 11 is fixed on 10 front end housing inner sides with one heart, rear bearing 2 is fixed on rear end cap 1 inner side with one heart, 1

# rotor core

5, 2# rotor core 8 is fixed in rotating shaft 12, one end of rotating shaft 12 and rear bearing 2 are fixing, the other end and fore bearing 11 are fixing, and by rear end cap 1, front end housing 10 is fixed on the inner side of stator core with one heart, and 1# rotor core 5 is axially aligned with 1

# stator core

4, 2# rotor core 8 is axially aligned it with 2

# stator core

7, 1# rotor core can be with respect to 1# stator core, 2# rotor core can be rotated with respect to 2# stator core.

This motor is identical by two cover numbers of pole-pairs, coaxial connection, rotating Vortex, the stator of the single phase alternating current (A.C.) shaded-pole asynchronous motor that power is identical, rotor forms, shaded-pole single-phase ac asynchronous motor stator is fixed in same support, rotor coaxial is connected to form a combined type motor, rotor is positioned at stator, can rotate with respect to stator, 1# rotor core and 1# stator core are axially aligned, 2# rotor core and 2# stator core are axially aligned, when cage-type rotor winding groove winding aligns vertically, the stator field relative position of 1# and 2# motor as shown in Figure 4, and 1#, the rotating magnetic field direction of rotation that 2# stator produces is identical, be that split-pole winding in stator core is along the same side of magnetic pole of the stator iron core, and the fundametal compoment that makes the air-gap field that two cover shaded-pole monopole asynchronous motors the produce 90 ° of electrical degrees that spatially stagger mutually,

As Fig. 2, shown in 3, in electrical connection, wherein the stator winding M2 of 2# shaded-pole single-phase ac asynchronous motor connects with shift capacitor C, and in parallel with 1# shaded-pole single-phase ac asynchronous motor stator winding M1, be connected on single phase alternating current power supply, the voltage-phase that makes to be added on 1# and 2# shaded-pole single-phase ac asynchronous motor stator winding produces phase shift, and 90 ° of electrical degrees of voltage-phase mutual deviation, now, the same time produces respectively the Vibration Torque of 180 ° of electrical degrees of two phase place mutual deviations on 1# rotor and 2# rotor, the mutual compensation of the Vibration Torque by 180 ° of electrical degrees of two phase place mutual deviations, the positive and negative component of Vibration Torque mutually compensates and reaches the object that suppresses Vibration Torque at one time.If the Vibration Torque of two motor generations is identical, Vibration Torque is offset completely.

Claims

1. the shaded-pole single-phase ac asynchronous motor of a low Vibration Torque, comprise rear end cap, rear bearing, support, 1# stator core, 1# rotor core, 1# stator winding, 2# stator core, 2# rotor core, 2# stator winding, front end housing, fore bearing, rotating shaft, 1# rotor winding and 2# rotor winding;

It is characterized in that: described 1# stator core, 2# stator core is fixed in support, 1# stator winding is embedded in 1# stator core, 2# stator winding is embedded in 2# stator core, 1# rotor winding is fixed on 1# rotor core, 2# rotor winding is fixed on 2# rotor core, rotor winding is cage modle winding, fore bearing is fixed on front end housing inner side with one heart, rear bearing is fixed on rear end cap inner side with one heart, 1# rotor core, 2# rotor core is fixed in rotating shaft, one end and the rear bearing of rotating shaft are fixed, the other end and fore bearing are fixed, and pass through rear end cap, front end housing is fixed on the inner side of stator core with one heart, and 1# rotor core and 1# stator core are axially aligned, 2# rotor core and 2# stator core are axially aligned, 1# rotor core can be with respect to 1# stator core, 2# rotor core can be rotated with respect to 2# stator core, when 1# rotor aligns vertically with the cage-type rotor winding groove winding of 2# rotor, and 1#, the rotating magnetic field direction of rotation that 2# stator produces is identical, the fundametal compoment of the air-gap field that two cover shaded-pole monopole asynchronous motors the produce 90 ° of electrical degrees that stagger mutually on circuferential spacing.

2. the shaded-pole single-phase ac asynchronous motor of a kind of low Vibration Torque according to claim 1, it is characterized in that: in electrical connection, wherein the stator winding M2 of 2# shaded-pole single-phase ac asynchronous motor connects with shift capacitor C, and in parallel with 1# shaded-pole single-phase ac asynchronous motor stator winding M1, be connected on single phase alternating current power supply, the voltage-phase that makes to be added on 1# and 2# shaded-pole single-phase ac asynchronous motor stator winding produces phase shift, and 90 ° of electrical degrees of voltage-phase mutual deviation.