CN1123486A

CN1123486A - Dynamo-electric machine

Info

Publication number: CN1123486A
Application number: CN 94120123
Authority: CN
Inventors: 石井良平
Original assignee: Ishii Corp
Current assignee: Ishii Corp
Priority date: 1994-11-25
Filing date: 1994-11-25
Publication date: 1996-05-29

Abstract

A number of permanent magnets is arranged in a ring form with alternate arrange of N pole and opposite S pole. A number of armature coils is wound on a ring type magnetic core which is located symmetrically between the permanent magnets with same polarity. An on/off switch device controls the current flowing in the armature coils.

Description

Electric rotating machine

The present invention relates to electric rotating machine, relate more specifically to high efficiency and can make slim electric rotating machine.

As in the open flat 4-69047 of No. of Japanese unexamined patent, disclosing by this assignee, known motor comprises some to magnet, its each to the magnetic pole of magnet identical polar toward each other and be loaded on the armature coil of corresponding magnetic core, its execution follows the relative motion that these many magnetic poles to the magnet identical polar have equally spaced path.This motor has been realized thin, tabular configuration.

So but its torque and power that above-mentioned motor is uniformly-spaced arranged because of magnetic core are not satisfied the demand.Just can not be configured to thinner tabular motor as increasing torque and power.

The present invention seeks to provide than above-mentioned habitual electronic function and produce bigger torque and more high-power turning motor.

For achieving the above object, turning motor according to the present invention comprises: some to permanent magnet, its each to the magnetic pole of magnet identical polar toward each other and each the magnet present situation is arranged; Some armature coils are around in ring-shaped core, this magnetic core be clipped in this some to permanent magnet have identical polar relative magnetic pole chien shih its this relative magnetic pole is had same intervals; Be used to connect/to turn-off the electric current of these some armature coils of flowing through with contact maker.

These some relative magnetic pole N to permanent magnet arrange that with relative magnetic pole S annular arrangement alternately several armature coils are on ring-shaped core, and this magnetic core is clipped between these some relative magnetic poles to permanent magnet.

Some permanent magnets can be set to 2n to and several armature coils can be set to 5n-12n, n is not less than 2 positive integer here, under these circumstances, should n electromagnet of some armature coils formation when excitatory.

Equally spaced can form several group projection and recesses on the whole circle of ring-shaped core, some under these circumstances armature coils are around in each recess, and this protrusion-shaped becomes electromagnet when these some armature coils are switched on.

The present invention is applied to the situation of motor, finishes the on/off that is added on some armature coil electric currents, always manifest magnetic pole N and S corresponding to the position of rotation of this contact maker at ring-shaped core by contact maker.Therefore, ring-shaped core meanwhile is subjected to permanent magnet and constantly attracts and raise, and wherein relative magnetic pole N and S arrange along circle alternate ground.

The present invention is applied to generator, and this generator is opposite with the operation of motor.

Fig. 1 is the perspective view of the motor ring-shaped core according to the present invention;

Fig. 2 illustrates armature coil is how to be around on the motor magnetic core of the present invention;

Fig. 3 is a motor plane graph of the present invention;

Fig. 4 is a motor side view of the present invention;

Fig. 5 illustrates the mode of connection of motor of the present invention;

Fig. 6 illustrates the position relation between brush, commutator, armature coil and the magnetic core of motor of the present invention;

Fig. 7 is illustrated in the motor of the present invention with respect to the corner (trunnion axis) of the axle measurement data (vertical axis) in the track density of the protrusion surface of ring-shaped core; With

Fig. 8 illustrates the rotating operation of motor of the present invention.

The most preferred embodiment that electric rotating machine of the present invention is applied to motor is illustrated with reference to the accompanying drawings below.

Shown in Fig. 3 and 4, motor according to the present invention comprises some to ferrite permanent-magnet iron 13-16, they arrange in the ring-type mode and its each to magnet magnetic pole same polarity respect to one another (this polarity poles N and S are alternately reverse in annular configuration); A plurality of armature coils 4 are around on the ring-shaped core of being made by silicon steel 1, this magnetic core be clipped in some to permanent magnet have identical polar relative magnetic pole chien shih its this relative magnetic pole is had same intervals; Contact maker has commutator 7 and brush 8-11 and in order to on/off this some electric currents to armature coil 4 of flowing through.

Some same polarity magnetic pole N and S to permanent magnet 13-16 are alternately reverse in annular configuration, and the some armature coils 4 that are around on the ring-shaped core 1 are clipped between the magnetic pole of this same polarity.In the present embodiment, the

permanent magnet

13 and 15 the N utmost point toward each other, the

permanent magnet

14 and 16 the S utmost point are toward each other.

As shown in Figure 1, ring-shaped core 1 such formation is to arrange some groups of projections 2 and recess 3 on whole circumference at certain intervals.Armature coil 4 is in each recess 3.When the some armature coils 4 that are around in recess 3 were switched on, projection 2 was as the rotor magnetic pole that forms electromagnet.It is coilings how that Fig. 2 illustrates these some armature coils 4.The lead-in wire of label 5 each armature coil 4 of expression.

In the present embodiment, because motor uses and to use device 7 and brush 8-11 instead, the ring-shaped core 1 that is wound with some armature coils 4 on it is as rotor, and some to permanent magnet 13-16 as stator.

Referring to Fig. 3,4 and 6, ring-shaped core 1 is rotatably mounted by axle 6.Commutator 7 is made up of the some commutator segment 7a that are fixed on the axle 6.Brush 8-11 and commutator 7 electrically contact.From the energising of 12 pairs of some armature coils 4 of DC power supply is to finish its on/off by brush 8-11 and the commutator 7 of contact maker SW.In Fig. 3 and 4, the armature coil 4 that is around in the recess 3 is not shown.

Generally, use 2n to permanent magnet (n is not less than 2 positive integer) and 5n-12n armature coil 4.When some armature coils 4 are switched on, form the n electromagnet.4 pairs of magnet in motor shown in Figure 6, have been used, 48 armature coils 4 and commutator 7 of 48 commutator segment 7a is arranged.

Wiring shown in Fig. 5 comprises armature coil 4, commutator 7 and brush 8 and 9.The loop A of armature coil 4, B, C ... Q is corresponding to the loop A, B, the C that are illustrated among Fig. 6 ... Q.

Shown in Fig. 6 and 7, when from brush 8-11 and the commutator 7 when finishing on/off to some armature coils 4 energisings of DC power supply 12 by contact maker SW, ring-shaped core/corresponding to the position of rotation of contact maker SW (brush 8-11) always by alternately polarization (being N-S-N-S).

In Fig. 7, the longitudinal axis is represented the magnetic flux density on ring-shaped core 1 projection 2 surfaces, and transverse axis is represented the corner (360 ° is a week) of axle 6.This magnetic core has been polarized to 4 utmost points (N-S-N-S) as shown in Figure 1 so in other words.Therefore, constantly attract and repulsion owing to be subjected to relative magnet 13-16, magnetic core 1 is accelerated at equidirectional and starts running.For example, referring to Fig. 7 and 8, under the situation of permanent-magnet pole 13, be around in the recess 3 of ring-shaped core 1 and make projection 2 as rotor magnetic pole N and S through the brush 8-9 of contact maker SW and the coil C-L of commutator 7 energisings by DC power supply 12.Therefore, the S utmost point of rotor magnetic pole is attracted by the N utmost point of permanent magnet 13, and the N utmost point of rotor magnetic pole is by the N utmost point institute repulsion of same permanent magnet 13.Like this, be wound with some armature coils 4 on it and be accelerated at equidirectional, promptly rotate as the ring-shaped core 1 of rotor.

In the superincumbent configuration,, the position of magnet 13 also rotates even changing in θ angular region as shown in Figure 6.Other magnet 14-16 is suitable for too.

The foregoing description is at brushed motor (brush motor), wherein be used for the contact maker of some armature coil 4 on/off energising is made up of commutator and brush, and the ring-shaped core 1 that is wound with some armature coils 4 on it is as rotor.But the present invention can be used for semiconductor motor (Semjconductor motor), and it uses thyristor as contact maker.In this case, some permanent magnets are as rotor, and the ring-shaped core 1 that is wound with some armature coils 4 on it is as stator.

The foregoing description is at motor, and the present invention can be used for generator equally.

Obviously find out that from above-mentioned specification turning motor of the present invention is for motor, electronic Machine comprises the armature coil that is around in ring-shaped core. By attraction and repulsion, this novelty, uniqueness Configuration makes rotor constantly obtain accelerating in same direction, not only produces thus very large torque And high efficient arranged. This has also realized that motor is thinner than habitual motor.

Equally, the present invention is used for generator, the efficient that the energy the produces function of being improved and generate electricity Make thinner than habitual generator.

Claims

1. electric rotating machine comprises:

Some to permanent magnet, its each to the magnetic pole of magnet identical polar toward each other and each is to the magnet annular configuration;

Some armature coils are around in ring-shaped core, this magnetic core be clipped in this some to permanent magnet have identical polar relative magnetic pole chien shih its this relative magnetic pole is had same intervals; With

Contact maker is used to connect/turn-off the electric current of these some armature coils of flowing through.

2. according to the electric rotating machine of claim 1, wherein these some relative magnetic pole N to permanent magnet and relative magnetic pole S alternately annular arrangement arrange and several armature coils on ring-shaped core, and this magnetic core is clipped between these some relative magnetic poles to permanent magnet.

3. according to the electric rotating machine of claim 1, wherein this some to permanent magnet be set to 2n to and these several armature coils are set to 5n-12n, n is not less than 2 positive integer here, and when excitatory these some armature coils formation n electromagnet.

4. according to the electric rotating machine of claim 1, wherein equally spaced form some groups of projections and recess on the ring-shaped core whole circumference, these some armature coils are around in each recess, and this protrusion-shaped becomes electromagnet when these some armature coils are switched on.