CN2283944Y

CN2283944Y - Single-phase and three-phase universal asynchronous motor

Info

Publication number: CN2283944Y
Application number: CN 96248339
Authority: CN
Inventors: 胡加久
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-20
Filing date: 1996-11-20
Publication date: 1998-06-10
Anticipated expiration: 2006-11-20

Abstract

The utility model relates to the field of an asynchronous motor. The utility model comprises a stator and a rotor, the motor of the utility model is provided with a capacitor, the inner of the stator is provided with a three-phase winding, the coils of the one phase winding of the stator are connected in series and then are led out with two terminals, each adjacent half coil of the windings of the two phases is connected in series and then is led out with two terminals, and the winding of the two phase windings are respectively led out with four terminals; the terminals which are led out are connected into the three-phase winding, and thus a three-phase power supply can be used; one phase winding is connected and used as an auxiliary winding which is connected in series with the capacitor, the coils of the other two windings are newly combined to new two windings which are connected in parallel to be used as a main winding, and thus a single-phase can be used.

Description

The universal asynchronous motor of single-phase, three-phase

The utility model relates to the asynchronous motor field.

Asynchronous motor has single-phase and branch three-phase, and they are divided into stator and two essential parts of rotor, and stator is made up of support and the iron core that is contained in the support, has groove to be used to place stator winding in the iron core.Monopole asynchronous motor can only use single phase poaer supply, and its stator winding is divided into main winding and auxiliary winding, auxiliary winding and capacitors in series.Threephase asynchronous can only use three phase mains, and its stator winding is symmetrical three phase windings.Under use three phase electric machine or situation under the situation of single phase poaer supply, use monophase machine all can't accomplish at present at three phase mains.

The purpose of this utility model just provides a kind of universal asynchronous motor single-phase, two kinds of power supplys of three-phase that are applicable to.

The purpose of this utility model realizes by the following technical solutions: it divides stator and rotor two parts, and stator is made up of support and the iron core that is contained in the support, has groove to place three phase windings in the iron core, has capacitor on the motor.Draw two line ends after each coil tandem of one phase winding of stator is good, every half adjacent coil tandem is drawn two line ends after good in other each winding of two phase windings, and promptly each winding is drawn four end lines in this two phase winding.When using three phase mains, this each line end of three phase windings is connected into three phase windings of symmetry; When using single phase poaer supply, that phase winding of drawing two line ends as auxiliary winding, capacitor in the series connection, the half coil that a half coil of each winding is adjacent with another winding in two other winding is connected into a new winding, after two winding parallel connections that reconfigure as main winding.

In the above scheme, the line end of each winding of three phase windings is drawn outside stator on line again, if with behind each end line on line again, make three phase windings that three phase windings become symmetry then motor just become threephase asynchronous machine and can use three phase mains; If with a phase winding as auxiliary winding and and capacitors in series, the coil of two phase windings is redistributed in addition, form two new windings and with these two new winding parallel connections as main winding, motor has just become single-phase capacitor operation motor like this, can use single phase poaer supply.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model stator winding schematic diagram.

Winding diagram when Fig. 3 is the utility model three-phase connection.

Winding diagram when Fig. 4 is the single-phase connection of the utility model.

Embodiment:

Single-phase, the universal asynchronous motor of three-phase shown in Figure 1 divide stator 1 and rotor 4 two parts, have capacitor 2 and terminal box 3 on the motor, and it has four utmost points.The stator winding schematic diagram that Fig. 2 provides, 1.-4. four coils in the winding connect, and 1. and 4. two line end draws; 2.-7.-9.-5. an adjacent half coil is that two coils connect in stator in the winding, draws four line ends 2., 7., 9., 5.; 3.-8.-10.-6. two adjacent coils also connect in stator in the winding, draw four line ends: 3., 8., 10., 6..When using three phase mains, its wiring as shown in Figure 3,7., 9. line end linked forms 2.-7.-9.-5. winding, will 8.-10. line end links and forms 3.-8.-10.-6. winding, this two phase winding and 1.-4. winding composition three-phase symmetric winding.Will be 1., 2., 3. three line ends connect, 4., 5., 6. three line ends connect three phase mains and just form star connection.When using single phase poaer supply, its wiring as shown in Figure 4.3.-8. two coils and two the coil series connection 2.-7. that are adjacent are formed 8.-3.-2.-7. winding, 6.-10. two coils are connected with two coils 9.-5. form 6.-10.-9.-5. winding, with these two new winding parallel connections as main winding, and 1.-4. winding as auxiliary winding and series capacitor 2, so just formed single-phase capacitor-operated motor, available single phase poaer supply.

Claims

1. single-phase, universal asynchronous motor of three-phase, it divides stator and rotor two parts, stator is made up of support and the iron core that is contained in the support, there is groove to place three phase windings in the iron core, have capacitor on the motor, it is characterized in that: draw two line ends after each coil tandem of a phase winding of stator is good, draw two line ends after every adjacent half coil connects in other two phase windings.