JP2583702Y2 - Stator and pole motor having the stator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric machine, and more particularly to a stator having a plurality of lap windings for adjusting a commutation angle and a reversing motor having the stator.

Whether the conventional AC and DC rectifier motors are of the shunt excitation, the series excitation, or the double winding excitation depends on whether or not there is an auxiliary or a brush having a magnetic pole axis. The maximum load of the motor is determined by the commutation angle. Prior art motors do not include means for adjusting the commutation angle during rotation of the rotor to accommodate load changes.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stator having a winding capable of adjusting a commutation angle during rotation of a rotor.

It is another object of the present invention to provide a commutation motor having a lap winding stator having an adjustable commutation angle capable of continuously adjusting a polar axis according to a rotation direction.

The combined lap winding stator according to the present invention is capable of continuously adjusting the commutation angle by applying different exciting currents to different windings for convenience of commutation. The stator according to the present invention is useful for two-way motors in order to regulate load changes in all types of motors and in particular to facilitate reversal of rotation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the stator of the present invention and a pole motor having the stator will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, the stator has at least three stator pole pieces T ₀ , T ₁ , T ₃ .

The auxiliary magnetic poles T ₁ and T ₂ of the auxiliary stator protruding pieces arranged on both sides of the main magnetic pole T ₀ of the main stator protruding piece have the same dimensions. it can. The main magnetic pole T ₀ of the main stator protrusion of the intermediate position or the larger or smaller size than the auxiliary pole T _1, T ₂ of the left and right auxiliary stator protrusion, or can be the same size.

A winding is wound around the magnetic pole of the stator of the present invention as follows.

The main winding W ₀ is wound around the magnetic poles T ₀ , T ₁ and T ₂ of the three fixed projections, and the auxiliary winding W ₁ is the main magnetic pole T ₀ of the main stator projection.
And wrapped around the auxiliary pole T ₁ of the auxiliary stator protrusion, wound around the auxiliary winding W ₂ is the main pole T ₁ of the main stator protrusion and an auxiliary pole T ₂ of the auxiliary stator protrusion Has been. Thus, the position of the center of the magnetic pole of the combined magnetic field depends on the selection of the winding and the proportionality of the exciting current applied to the selected winding in FIG.

The embodiment of FIG. 2 Yes incorporating a basic embodiment of FIG. 1, and are further windings W ₃ wound around the main magnetic pole T ₀ of the main stator protrusion of the intermediate position is added. Or winding W ₃ being excites independently to correct the magnetic field waveform, or 2
It can be wrapped in the main winding W ₀ series.

The embodiments described above can be applied to AC or DC series-wound motors, shunt-wound motors or compound-wound motors, but are particularly advantageous when used in rotary reversing type. FIG.
FIG. 3 is a circuit diagram of a rotary inversion motor equipped with a stator having three windings.

3, the control switch SW ₁ is a double-pole double-throw switch having a pole P _3, P ₄ respectively connected to the motor windings A ₀ through brush. Contact P ₁ is connected to the contact P ₅ through the auxiliary winding W _1. The main winding W ₀ are connected in series between the auxiliary winding W ₁ and W _2. Contact P ₂ are connected to the contact P ₆ through the auxiliary winding W _2.

An auxiliary winding W ₁ of the left side, the main winding W _0, right auxiliary winding W ₂
It has the same excitation magnetic windings of three series connections are connected in parallel with the power input terminals A and B to be connected to the power supply, motor A ₀ is increased engine or reversing rotation by the switch SW ₁ It is positioned in. In particular the contact P ₁ is connected to the pole P ₃ and pole P ₄ auxiliary winding W ₁ when the is connected to the contact P ₅ become parallel to the electric motor A _0, and the input terminal A, the winding W between B the series with ₀ and W _2. The main winding W ₀ becomes series right auxiliary winding W _2, winding W _0, W ₁ and W ₂ is parallel to the input terminals A and B. The above-described arrangement results in an ascending rotary compound motor. However, the contact P ₂ are connected to poles P _3, the magnetic poles P ₄ is connected to the contact P ₆ by switching the control switches SW _1. In this state, the motor A ₀ is rotated in the reversing direction.

While the preferred embodiment of the present invention has been fully described above, various modifications can be made without departing from the basic technical spirit of the present invention.

For example, all of the embodiments described above can be applied to a power generator.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a stator winding according to a first embodiment of the present invention. FIG. 2 is an explanatory view of a stator winding according to a second embodiment of the present invention. FIG. 3 is a circuit diagram in which the embodiment shown in FIG. 1 is used in a multi-turn excitation pole motor. W ₀ … Main winding W ₁ , W ₂ … Auxiliary winding T ₀ … Main magnetic pole T ₁ , T ₂ … Auxiliary magnetic pole W ₃ …… Windings P ₁ , P ₂ , P ₅ , P ₆ … … Contacts P ₃ , P ₄ …… Pole SW ₁ …… Control switch A ₀ …… Armature A, B …… Input terminals

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02K 23/00-23/68 H02K 27/00-27/30

Claims (3)

(57) [Scope of request for utility model registration] 1. A plurality of stator projections protruding inward from around a cylindrical circumference, and the stator projections are continuously arranged in pairs around the circumference, and the pair is mainly fixed. The main winding is wound around each pair of stator protruding pieces, and the magnetic pole center is around each pair of stator protruding pieces. A plurality of auxiliary windings for generating a composite magnetic field are wound, and the center of the magnetic pole can be adjusted by changing the proportionality of the exciting current in the main winding and the auxiliary winding. A first auxiliary winding wound around the main stator projection and one auxiliary stator projection to adjust the magnetic pole in one direction, and a main stator projection and the other to adjust the combined magnetic pole in the other direction. And a second auxiliary winding wound around the auxiliary stator projection. 2. A method according to claim 1, further comprising a plurality of stator projections protruding inward from around the cylindrical circumference, wherein the stator projections are continuously arranged in pairs around the circumference, and the pair is mainly fixed. The main winding is wound around each pair of stator protruding pieces, and the magnetic pole center is around each pair of stator protruding pieces. A plurality of auxiliary windings for generating a composite magnetic field are wound, and the center of the magnetic pole can be adjusted by changing the proportionality of the exciting current in the main winding and the auxiliary winding. A first auxiliary winding wound around the main stator projection and one auxiliary stator projection to adjust the magnetic pole in one direction, and a main stator projection and the other to adjust the combined magnetic pole in the other direction. A second auxiliary winding wound around the auxiliary stator projection;
And a third auxiliary winding wound around the main stator projection. 3. A motor comprising: a pair of terminals connected to a power supply source; a rectifier motor; a plurality of stator windings connected in series between the terminals; A rectifier comprising a rotor, a first contactor and a second contactor for maintaining electrical contact with the rotor, and rectifying means for distributing power from a power supply source to the rotor; It has a plurality of stator projections projecting inward, and the stator projections are continuously arranged in pairs around the circumference, and one pair includes a main stator projection and a set of auxiliary fixing on both sides. A main winding wound around each pair of stator projections, and each pair of the stator windings for generating a combined magnetic field having a magnetic pole center. A plurality of auxiliary windings wound around the stator protruding piece of the main winding and the excitation in the auxiliary winding. The center of the magnetic pole can be adjusted by changing the proportionality of the flow, and a plurality of auxiliary windings are arranged around the main stator projection and one auxiliary stator projection to adjust the composite magnetic pole in one direction. A second auxiliary winding wound around the main stator projection and the other auxiliary stator projection to adjust the wound first auxiliary winding and the composite magnetic pole in the other direction; The throw pole switch includes a pair of first contacts connected in parallel with the main winding and a first magnetic pole connected to the first contactor, and a pair of auxiliary windings connected in parallel with the pair of auxiliary windings. A first position for generating a combined magnetic field having a magnetic pole center for driving the rotor in a clockwise direction, the second position comprising a second contact and a second magnetic pole connected to the first contactor; Generates a composite magnetic field with a magnetic pole center to drive the element counterclockwise Reversing electric motor to be positioned in either the second position that.