JPH01110032A - Five-phase dc motor with no overlapping of armature winding - Google Patents

Abstract

PURPOSE:To make it possible to reduce torque ripples without overlapping the end sections of windings with another armature windings by using commutators constituted of ten commutator pieces on a five-phase DC motor. CONSTITUTION:A stator is equipped with a four-pole field magnetic pole 50. In the meanwhile, the first - the tenth salient poles 18-1-18-10 are formed on a rotor armature core 17 with an equal interval with phase shifting by 72 deg. each in an electrical angle, and the first phase - the fifth armature windings 70-1-70-5 are wound on those salient poles. Terminals of the armature windings 70-1-70-5 are connected to the first - the tenth commutator pieces 72-1-72-10 which are formed next to each other on a rotor in turn. Accordingly, commutator pieces 72-1-72-10 are such that commutator pieces on the same phase position are connected each other, and brushes 12-1 and 12-2 connected to a positive power terminal 13-1 and a negative power terminal 13-2 are placed with 180 deg. of opening angle in an electrical angle.

Description

[Detailed Description of the Invention] [Industrial Application Field of the Invention] The present invention provides a field magnetic pole having 4 magnetic poles with little torque ripple and good efficiency, 10 salient poles, and 10 salient poles arranged so that they do not overlap with each other. A commutator with 5 armature windings for the 1st to 5th phases wound around the 10 salient poles and 10 commutator pieces 1 mechanical angle 90 degrees (electrical angle 180 degrees) Regarding a 5-phase DC motor with non-overlapping armature windings having brushes arranged at an opening angle of 2°, especially the conventional field pole with 2 magnetic poles, 10 salient poles, 3 times each other. A commutator having 10 armature windings for the 1st to 10th phases and 10 commutator pieces, which are wound around the 10 salient poles so that the conductor ends are overlapped, is measured in mechanical angle. An armature that has been converted from a 10-phase DC motor with brushes arranged at 180 degrees (same electrical angle) to a 5-phase DC motor that has been improved in terms of cost and mass production so that it can be manufactured easily. This invention relates to a five-phase DC motor in which windings do not overlap.

[Technical background of the invention and its problems] Conventionally, as a small, inexpensive salient pole type small DC motor, three salient poles are each wound with an armature winding.
Phase DC motors are well known.

This salient pole type three-phase DC motor has an annular two-pole field magnetic pole having N and S poles with an opening angle width of 180 degrees in mechanical angle (180 degrees in electrical angle) or narrower than that. an armature winding that is provided as a stator and is wound around each of three salient poles made by laminating silicon steel plates that are arranged to rotate opposite to the field magnetic poles with an air gap therebetween; A commutator having three commutator pieces and two brushes that are in sliding contact with the commutator are arranged at an opening angle of 180 degrees in mechanical angle (the same is true in electrical angle), and the positive power terminal of the DC power supply and Current is supplied from the negative power supply terminal.

In this three-phase DC motor, the commutator is formed of three commutator pieces, so the current is switched only six times for one rotation of the commutator, resulting in extremely high torque ripple. was large and could not rotate smoothly. Therefore, it is not suitable for devices such as audio equipment that require small torque ripple and smooth rotation.

In addition, since the opening angle of the salient pole is quite narrow compared to the width of one magnetic pole of the field magnetic pole, the effective part that contributes to the generated torque is considerably narrower than the width of one magnetic pole of the field magnetic pole, so that the anti-torque of one However, it was not possible to obtain large torque and was extremely inefficient.

Note that it is almost impossible to reduce the torque ripple to 0 in a salient pole type DC motor, but the cheapest way to reduce the torque ripple is to increase the number of current switching cycles. .

By increasing the period of the torque ripple according to the period, it is possible to make the torque ripple as flat as possible.

In addition, there has been a demand for a highly efficient DC motor that not only has a small torque ripple but also can obtain even larger torque without drastically changing the size of the motor.

For this purpose, in the past, as shown in FIGS. 6 to 9, instead of the conventional salient pole type three-phase DC motor, the number of salient poles 4 of the rotor armature core 3 was changed as the rotor armature 2. 5
By constructing a five-phase DC motor 1 in which five armature windings 5 are wound on the salient poles 4, the drawbacks of the salient pole type three-phase DC motor can be overcome to some extent. I was trying to resolve it.

Such a conventional five-phase DC motor 1 will be explained below.

As shown in Fig. 6, five salient poles 4 are attached to the rotor armature core 3.
-1. ..., 4-5 are formed at equal intervals, five slots 6 for winding insertion are formed between the salient poles 4, and five armature windings 5- are inserted into the five slots 6. 1. ..., 5-5
The windings were inserted at equal intervals so that they overlapped with other armature windings.

In addition, in FIGS. 6 and 7, the armature winding portion (the dotted line portion 8-1 in FIG. 6) wound in the slot 6 is shown.
8-10) is a part that contributes to the 1 generation torque, but the conductor ends 7 protruding from both upper and lower ends of the salient pole 4 are parts that do not contribute to the 1 generation torque.

5 slots 6-1. ..., 1st on 6-5 respectively
Five armature windings 5-1 for phases to fifth phases. ...,
In order to insert the winding 5-5, for example, the first order is used.

The conductor part contributing to the generated torque on one side of the armature winding 5-1 for the first phase is inserted into the dotted line part 8-1 of the slot 6-1 between the salient poles 4-5 and 4-1, and the other conductor part contributes to the generated torque. The conductor portion contributing to the generated torque is inserted into the dotted line portion 8-4 of the slot 6-3 between the salient poles 4-2 and 4-3.

The conductor part that contributes to the generated torque on one side of the armature winding 5-2 for the second phase is inserted into the dotted line part 8-3 of the slot 6-2 between the salient poles 4-1 and 4-2, and the other conductor part contributes to the generated torque. The conductor portion contributing to the generated torque is inserted into the dotted line portion 8-6 of the slot 6-4 between the salient poles 4-3 and 4-4.

The conductor part contributing to the generated torque on one side of the armature winding 5-3 for the third phase is inserted into the dotted line part 8-5 of the slot 6-3 between the salient poles 4-2 and 4-3, and The conductor portion contributing to the generated torque is inserted into the dotted line portion 8-8 of the slot 6-5 between the salient poles 4-4 and 4-5.

The conductor part contributing to the generated torque on one side of the armature winding 5-4 for the fourth phase is inserted into the dotted line part 8-7 of the slot 6-4 between the salient poles 4-3 and 4-4, and The conductor portion contributing to the generated torque is inserted into the dotted line portion 8-10 of the slot 6-1 between the salient poles 4-5 and 4-1.

The conductor part that contributes to the generated torque on one side of the armature winding 5-5 for the fifth phase is inserted into the dotted line part 8-9 of the slot 6-5 between the salient poles 4-4 and 4-5, and the other conductor part contributes to the generated torque. The conductor portion contributing to the generated torque is inserted into the dotted line portion 8-2 of the slot 6-2 between the salient poles 4-1 and 4-2.

In this way, as shown in FIGS. 7 and 8, the armature windings 5-], . . . Can be installed.

Since five armature windings 5 are used, the commutator 9 is.

Five commutator pieces 9-1. ..., elliptical formation in 9-5 group 1
It is provided concentrically with the rotating shaft 10.

On the outer periphery of the rotor armature 2, two annular field magnetic poles 11 each having an N pole and an S pole formed with a width of 180 degrees are fixed facing each other with a radial gap in between. . A motor body (not shown) made of a magnetic material for closing a magnetic path is fixed to the outer periphery of the field magnetic pole 11.

The commutator 9 has two brushes 12 similar to a three-phase DC motor.
-1. '12-2 are arranged at an opening angle of 180 degrees in mechanical angle (the same is true in electrical angle) as shown in Fig. 9, and are in sliding contact with the positive power terminal 13-1 and the negative power terminal 13 of the DC power supply. -2 through the commutator 9 to the armature winding 5-1. ..., 5-5
supplies current to.

Figure 9 shows the field magnet fi11 and armature winding 5-1,...
It is a developed view with the 5-5 group.

Armature winding 5-1. . . , 5-5 groups are wound around the salient poles 4 at equal intervals so that the conductor end portions of the adjacent armature windings 5 groups are doubled.

The commutator 9 includes five commutator pieces 9-1. ....

9-5, armature winding 5-1. ....

One terminal of each of the commutator pieces 9-1. ..., electrically connected to 9-5.

Armature winding 5-1. . . , 5-5 are sequentially connected to the commutator pieces 9-1. ..., 9-
5.

In this way, a five-phase DC motor with five salient poles is formed.

Therefore, since the current is switched 10 times in response to one rotation of the commutator 9, the torque ripple increases by 4 compared to a 3-phase DC motor with 3 salient poles. By that amount, the rotation can be made more pure.

Yet again. The number of armature windings 5 is larger than that of a three-phase DC motor, and since the five armature windings 5 are sequentially switched and energized, there is an advantage that a large torque can be obtained.

In this way, it has two field magnetic poles 11, and has five salient poles (4-1
,,...,4. -5), 5 windings (5-],...
5-5), the five-phase DC motor 1 having the commutator 9 consisting of five groups of commutator pieces 9-1, . . . , 9-5 is certainly superior to the conventional three-phase DC motor. This has the advantage of reducing ripples.

However, such a five-phase DC motor 1.

A commutator piece 9-1 with five commutators 9. . . , 9-5, the torque ripple was still large, and it was not sufficient as a DC motor for use in equipment that dislikes extremely large torque ripples, such as sound VI equipment.

In addition, the armature windings 5-1, ..., 5-5 forming each phase are carefully overlapped with other armature windings over a large angular range at the conductor end 7 to form the salient pole 4. Since the wire is wound, the thickness of the conductor end 7 becomes thicker, resulting in a large electric motor.In addition, it is difficult to process the conductor end 7, and the two-winding method is also troublesome, making it impossible to mass-produce the wire at a low cost.

In addition, in the DC motor 1 of the above-mentioned phases, the commutator 9 has 5
It consists of 5 commutator pieces 9-1, . . . , 9-5.
armature windings 5-1. ....

Since the 5-5 group is not wound with phase shift, there is an advantage that it is not necessary to electrically connect predetermined commutator segments as shown in FIG. 9.

However, even if such advantages were taken into account, the above-mentioned drawbacks were considered to be greater disadvantages.

What is meant by one-phase transition here will be explained in the explanation of the five-phase DC motor, which will be described later, so the explanation thereof will be omitted here.

The first DC motor 14, which was created to eliminate the drawbacks of the five-phase DC motor 1 and is actually used, is
There is one shown in Figure 0.

The 10-phase DC motor 14 shown in FIG.

Since the motor is powered by 10-phase DC, the commutator 15 is connected to 10 commutator segments 15-1. ..., 15-10, and the field magnetic pole 1 is formed in order to reduce the cogging torque.
N-pole and S-pole field magnets 16-1.16-
2 was formed with segment magnets so that the thickness gradually became thinner toward its end, and the thickness of the air gap 20 between the outer periphery of the rotor armature core 17 and the field magnetic pole 16 gradually increased. The commutator 15 is equipped with two field magnets 16-1 and 16-2, and is made up of ten commutator pieces 15-], . . . , 15-10. 10 armature windings 19-1 for the first phase to the tenth phase. ....

19-10.

This 10-phase DC motor 14 has a rotor armature core 17 as shown in FIGS. 10 and 11.

Ten salient poles 18-1 each formed at an interval of 36 degrees in mechanical angle (the same is true when expressed in electrical angle).・
..., 18-10 and ten winding insertion slots 21-1, ..., 21-10 formed by these.

FIG. 10 is a plan view showing the relationship between the rotor armature core 17 to which no armature windings are attached and the field magnetic poles 16 forming the stator of a 10-phase DC motor 14 (however, the motor body is 11 is an exploded perspective view showing the main parts of a 10-phase DC motor 14 having 10 armature windings, and FIG. 12 is an exploded perspective view showing the field magnetic poles 16 and the first phase 10 armature windings 19-1 for the 10th phase. ....

19-10 and ten commutator pieces 15-1, ..., 1
A developed view of a commutator 15 consisting of 5-10 is shown.

This 10-phase DC motor 14 differs from the above-mentioned 5-phase DC motor 1 in that the N and S field magnetic poles 14 and 6 are each magnetized with a width of 144 degrees in mechanical angle (180 degrees in electrical angle). Field magnet 16-1 formed of two segment magnets.
It is a two-pole structure made up of 16-2. This is because using a two-pole cylindrical field magnetic pole 16 as shown in FIG. 6 would be expensive, so it can be formed at a low cost.

A rotor armature core 17 made by laminating silicon steel plates has ten salient poles 1 extending in the radial direction at equal intervals.
8-1. ..., 18-10, and the ten salient poles 18-1. ..., 1 formed between 18-10
0 winding insertion slots 21-1. ..., 21
-10 armature windings 19-1. ..., 1
9-10 are wound.

In this 10-phase DC motor 14, one effective conductor portion 19a of the armature winding 19-1 for the first phase (see FIG. 12)
is located at the dotted line section 22 of the slot 21-1 between the salient poles 18-10 and 18-1 as shown in FIG. 10, and the other effective conductor section 19b (see FIG. 12) is As shown, the armature winding 19- for the first phase spans the salient poles 18-1 to 18-4 so as to be located at the dotted line portion 29 of the slot 21-5 between the salient poles 18-4 and 18-5. 1 is wound.

One effective conductor portion 19 of armature winding 19-2 for second phase
a is located in the dotted line section 24 of the slot 21-2 between the salient poles 18-1 and 18-2; Dotted line part 31
A second phase armature winding 19-2 is wound across the salient poles 18-2 to 18-5 so as to be located at the salient poles 18-2 to 18-5.

One effective conductor portion 19 of armature winding 19-3 for third phase
a is located in the dotted line part 26 of the slot 21-3 between the salient poles 18-2 and 18-3, and the other effective conductor part 19b is located in the dark slot 21-7 of the salient poles 18-6 and 18-7. Dotted line part 33
A third phase armature winding 19-3 is wound across the prongs 118-3 to 18-6 so as to be located at .

One effective conductor portion 19 of the armature winding 19-4 for the fourth phase
a is located in the dotted line part 27 of the slot 21-4 between salient poles 18-3 and 18-4, and the other effective conductor part 19b is located in the slot 21-8 between salient poles 18-7 and 18-8. Dotted line part 35
A fourth phase armature winding 19-4 is wound across salient poles 18-4 to 18-7 so as to be located at .

One effective conductor portion 19 of the armature winding 19-5 for the fifth phase
a is located in the dotted line part 30 of the slot 21-5 between the salient poles 18-4 and 18-5, and the other effective conductor part 19b is located in the slot 21-9 between the salient poles 18-8 and 18-9. Dotted line part 37
A fifth phase armature winding 19-5 is wound across salient poles 18-5 to 18-8 so as to be located at .

One effective conductor portion 19 of the armature winding 19-6 for the 6th phase
a is located in the dotted line part 32 of the slot 21-6 between the protrusions 118-5 and 18-6, and the other effective conductor part 19bJi protrusion [
i18 9 and 18 10ifl salient poles, 18-6 to 18-9 to be located at the dotted line part 39 of the slot 21-10
A sixth phase armature winding 19-3 is wound across the two.

One effective conductor portion 19 of the armature winding 19-7 for the seventh phase
a is located in the dotted line part 34 of the slot 21-7 between the salient poles 18-6 and 18-7, and the other effective conductor part 19b is located in the dotted line part 34 of the slot 21-7 between the salient poles 18-6 and 18-7.
! The armature winding 19-7 for the seventh phase is wound across the salient poles 18-7 to 18-10 so as to be located in the dotted line portion 41 of the slot 21-1 between 18-10 and 18-1. ing.

One effective conductor portion 19 of the armature winding 19-8 for the 8th phase
a is located at the dotted line portion 36 of the slot 21-8 between the salient poles 18-7 and 18-8, and the other effective conductor portion 19b is located at the dotted line portion 36 of the slot 21-8 between the salient poles 18-7 and 18-8.
The armature winding 19-8 for the 8th phase is wound across the salient poles 18-8 to 18-1 so as to be located in the dotted line part 23 of the slot 21-2 between g118-1 and 18-2. ing.

One effective conductor portion 19 of the armature winding 19-9 for the 9th phase
a is located in the dotted line part 38 of the slot 21-9 between salient poles 18-8 and 18-9, and the other effective conductor part 19b is located in the slot 21-3 between salient poles 18-2 and 18-3. Dotted line part 25
A ninth phase armature winding 19-9 is wound across the salient poles 18-9 to 18-2 so as to be located at .

One effective conductor portion 19a of the armature winding 19-10 for the 10th phase is connected to the slot 21 between the salient poles 18-9 and 18-10.
-10, located at the dotted line section 40, and the other effective conductor section 19b
The armature winding 19-10 for the 10th phase spans the salient poles 18-9 to 18-3 so as to be located in the dotted line part 41 of the slot 21-4 between the salient poles 18-3 and 18-4. is wound.

In this way, the rotor armature core 17 is
10 armature windings 19-1, ..., 19-1 for phases
By winding 0, the rotor armature 42 of the 10-phase DC motor 14 can be easily formed.

Each armature winding 19-1. ....

One terminal of commutator pieces 15-1.
..., 15-10, and the other terminals are sequentially connected to ! 1 stream piece 15-2,..., 15-10.
15-1, and to the commutator 15, a brush 12-1 connected to the positive power terminal 13-1 and a brush 12-2 connected to the negative power terminal 13-2 are connected to the commutator 15, respectively. They are arranged with an opening angle of 180 degrees at the corners and are in sliding contact.

This 10-phase DC motor 14 is formed with 10 commutators 15, so when the rotor armature 42 rotates once, there are 20 torque ripples. The motor rotates more smoothly than the five-phase DC motor 1 shown in FIG. 1 again! machine “child winding 1”
9 is also provided with 10 pieces for the first Aikawa to the first O phase, so a relatively large torque can be obtained. Yet again. In the field magnets 16-1 and 16-2, the thickness of the air gap 20 is gradually increased from the center to the ends, so that the cogging torque becomes smaller and the field magnets 16-1 and 16-2 rotate smoothly. Also, in the case of this 10-phase DC motor, the number of phases of the motor (the machine winding) and the number of commutator pieces are the same, and since there is no phase transition, the commutator pieces are electrically connected to each other. It has the advantage of not having to be complicated to connect to.

However, in the case of this 10-phase DC motor 14, compared to the above-mentioned 5-phase DC motor 1.

Armature winding 19-1 forming each phase. ....

Each of the wires 19-10 is wound at the end of the rotor armature core 17 in a triple overlapping manner over a large angular range with the other six armature windings and its conductor end 43, so that the conductor end The thickness of the 43 part becomes very thick, resulting in a very large electric motor, and the disadvantage is that the 43 part of the conductor end is difficult to process, and the single winding method is also troublesome, making it impossible to mass-produce it at a low cost. Furthermore, field magnets 16-1 and 16-
Since the magnets 16-1 and 16-2 are placed quite far apart, there are large portions where no torque is generated during one rotation, which not only results in poor efficiency, but also causes the field magnets 16-1 and 16-2 to Since the thickness of the air gap 20 is increased, the magnetic flux is weakened and a large torque cannot be obtained, resulting in poor efficiency.

That is, although the 10-phase DC motor 14 has been improved in terms of torque ripple, it still has major drawbacks.

Therefore, the first improvement was made to the 10-phase DC motor 14.
This is a five-phase DC motor 44 shown in FIGS. 3 and 14.

This 5-phase DC motor 44 uses the rotor armature core 17 of the 10-phase DC motor 14 as is, but differs in the number of turns and the winding method of the armature winding.

This DC motor 44 has a commutator 45 divided into ten commutator pieces 45-1, . . . , 45-10 so as to rotate smoothly.
24f! was formed to reduce torque ripple and was used in the DC motor 1! field magnetic poles 11 are used, and the armature windings are five armature windings 46-1 for the first to fifth phases, respectively. ..., 46-5
is wound around the rotor armature core 17 to form the rotor armature 4.
7.

A rotor armature core 17 made by laminating silicon steel plates has ten salient poles 1 extending in the radial direction at equal intervals.
8-1. ..., 18-10, and the ten salient poles 18-1. ..., 18-10, and five armature windings 46-1. ..., 46-5 are wound.

In this five-phase DC motor 44, one effective conductor portion 46a (see FIG. 14) of the armature winding 46-1 for the first phase is connected to the slot 21-1 between the salient poles 1s-io and 18-1. 1, and the other effective conductor portion 46b (see FIG. 14) is located between the salient poles 18-1 to 18-5 so that it is located in the slot 21-6 between the salient poles 18-5 and 18-6. A first phase armature winding 46-1 is wound across the first phase.

One effective conductor portion 46 of the armature winding 46-2 for the second phase
a is located in the slot 21-3 between the salient poles 18-2 and 18-3, and the other effective conductor part 46b is located in the slot 21-3 between the salient poles 18-7 and 1.
The salient pole 18 is positioned in the slot 21-8 between 8-8.
The armature winding 4 for the second phase spans between -3 and 18-7.
6-2 is wound.

One effective conductor portion 46 of armature winding 46-3 for third phase
a is located in the slot 21-5 between the salient poles 18-4 and 18-5, and the other effective conductor part 46b is located in the slot 21-5 between the salient poles 18-9 and 1.
A third phase armature winding 19-3 is wound across the salient poles 18-5 to 18-9 so as to be located in the slot 21-10 between the salient poles 18-5 and 18-10.

One effective conductor portion 46 of the armature winding 46-4 for the fourth phase
a is located in the slot 21-7 between the salient poles 18-6 and 18-7, and the other effective conductor portion 46b is located in the slot 21-7 between the salient poles 18-1 and 18-7.
The salient pole 18 is positioned in the slot 21-2 between 8-2.
Armature winding 4 for the fourth phase spans between -7 and 18-1.
6-4 is wound.

One effective conductor portion 46 of the armature winding 46-5 for the fifth phase
a is located in the slot 21-9 between the salient poles 18-8 and 18-9, and the other effective conductor part 46b is located in the slot 21-9 between the salient poles 18-3 and 18-9.
The salient pole 18 is positioned in the slot 21-4 between 8-4.
Armature winding 4 for the fifth phase spans between -9 and 18-3.
6-5 is wound.

In this way, five armature windings 4 are connected to the rotor armature core 17.
6-1. ..., 46-5, the rotor armature 47 of the five-phase DC motor 44 can be easily formed.

Each armature winding 46-1. ....

One terminal of 45-5 is connected to the rectifier 45-1, ・
..., 45-5, and the other terminals are sequentially connected to the commutator pieces 45-7. ....

Commutator pieces 45-1 and 45-6.45- are electrically connected to 45-10.45-6 and are in phase with each other.
2 and 45-7.45-3 and 45-8.45-4 and 45-
9 and 45-5 and 45-10 are electrically connected. The positive power terminal 13-1 is connected to the commutator 45, respectively.
The brush 12-1 connected to the negative power terminal 13-2 and the brush 12-2 connected to the negative power terminal 13-2 are disposed at an opening angle of 180 mechanical degrees and are in sliding contact.

This 5-phase DC motor 44 is formed with 10 commutators 45, so when the rotor armature 47 rotates once, there are 20 torque ripples as in the 10-phase DC motor 14. .

Even when looking only at the number of torque ripples, the motor rotates more smoothly than a conventional five-phase DC motor. Furthermore, since the armature winding 46 consists of five pieces for the first to fifth phases, the armature windings 46-1, . . . , forming each phase are compared to the 10-phase DC motor 14. 46-5 each other 4
However, compared to the DC motor 14, the number of armature windings and the conductor end 48 of the armature windings overlaps twice. Since the armature windings overlap less by the thickness of one layer, it is easier to wind the motor than in the DC motor 14, which has the advantage of being superior in mass production. Furthermore, since the number of armature windings 46 is five fewer, it can be formed at a correspondingly lower cost. Yet again. Since the number of salient poles is 5 more than that of the 65-phase DC electric motor R1, the number of cogging torque ripples is also doubled, which has the advantage of smoother rotation.

However, even in this five-phase DC motor 44,
At the conductor end 48 portion, the armature winding 46 is wound at the end of the rotor armature core 17 in a quadruple overlapping manner with other armature windings 46 over a large angular range. In addition to the fact that the conductor ends are very thick, resulting in a very large electric motor, it is difficult to process the conductor ends and the single winding method is also troublesome, making it difficult to mass-produce at a low cost.

Yet again. Since the number of commutator segments 45 has increased to 10, it is necessary to electrically connect the commutator segments using conductive wires, or it is easy to electrically connect the commutator segments using such conductive wires. Commutator pieces that are out of phase by 2π (=360 degrees) in electrical angle must be electrically connected using a printed wiring board on which a printed power distribution pattern is formed to form crossover wires. Therefore, there is a drawback that the number of manufacturing steps increases, leading to an increase in cost.

In consideration of this point, those involved in the present invention have previously developed a five-phase DC motor 49 as shown in FIGS. 15 to 20, and have replaced the conventional five-phase DC motor 1.43. and 10
The drawbacks of the phase DC motor 14 have been solved.

The improved conventional five-phase DC motor 49 will be described below with reference to FIGS. 15 to 20.

These four improved conventional five-phase DC motors use the rotor armature core 3 of the conventional five-phase DC motor 1 as is, so the five salient poles 4-
1. ..., 4-5.

Five winding insertion slots 6 formed by these
-1. ..., 6-5. Therefore, common parts are given the same reference numerals, and detailed explanations of the common parts will be omitted.

FIG. 15 is a plan view showing the relationship between the rotor armature core 3 without armature windings and the field magnetic poles 50 forming the stator (however, the motor body is omitted). 16th
The figure is a plan view of a five-phase DC motor 49 (however, the illustration of the motor body is omitted), and FIG. 17 shows the rotor armature core 3 of FIG. Five armature windings 51-1. . . , 51-5 is a perspective view of the rotor armature 52 with windings attached thereto. FIG. In figure.

Figure 19 shows a partially cut-out printed wiring board 5 in Figure 18.
20 is a perspective view of the rotor armature 52 equipped with the field magnetic pole 50 and the five armature windings 51-1.3 for the first to fifth phases. ..., 51-5 and ten commutator pieces 54-1. . . , a developed view of a commutator consisting of 54-10 is shown.

The field magnetic pole 50 is different from that used in the DC motor 1,
N[! , the S-pole has four magnetic poles each magnetized with a width of 90 degrees in mechanical angle (180 degrees in electrical angle). The rotor armature core 3, which is made by laminating silicon steel plates, has five salient poles 4-1 extending in the radial direction at equal intervals. ..., 4-5, and the 5
salient poles 4-1. ..., 4-5, five armature windings 51-1. ..., 51-5 are wound.

In this improved conventional five-phase DC motor 49, unlike the conventional five-phase DC motor 1, the commutator 54 has ten commutator pieces 54-1. ...254-10, and five armature windings 51-1. ...
, 51-5 have different winding positions.

In particular, five armature windings 51-1. ....

The reason why the winding position of 51-5 is different is that one phase transition is performed.

Here, the definition of phase transition will be explained. This phase transition is also referred to as in-phase transition.

For example, looking at the development diagram shown in FIG. 9, the second phase armature winding 5-2 overlaps the first armature windings 5-1 and 5-3, and the armature winding 5-2 4 overlaps with armature windings 5-3 and 5-5, which causes various inconveniences, so armature windings 5-2 and 5-4 are in phase so that they do not overlap with other armature windings. It means to move to a position where .

However, in the case shown in Fig. 9, even if nine phase transitions are performed, armature windings 5-2, 5-4 overlap with other armature windings, so in reality, the field As shown in FIG. 20, the magnetic pole 11 has twice the number of magnetic poles as the field magnetic pole 20, and the armature windings 5-2 and 5-4 are connected to the corresponding armature windings 52-2. and 52-4, it is moved to a position where it does not overlap with other armature windings and has the same phase.

In this five-phase DC motor 52, one effective conductor portion 51a (see FIG. 20) of the armature winding 51-1 for the first phase is connected to the slot 6-1 between the salient poles 4-5 and 4-1. 1 dotted line part 55
(see FIG. 15), and the other effective conductor portion 51b (
20) is the slot 6 between the salient poles 4-1 and 4-2.
Approximately a.4 in electrical angle so as to be located at the dotted line part 56 between -2
The armature winding 51-1 for the first phase is attached to the first salient pole 4-1 located at the position of π (where a is 0) degrees, that is, 0 degrees (the same is true when expressed in mechanical angles). is wound.

One effective conductor portion 51 of armature winding 51-3 for third phase
a is located at the dotted line part 57 of the slot 6-2 between salient poles 4-1 and 4-2, and the other effective conductor part 51b is located at salient pole 4-2.
and 4-3, so that it is located at the dotted line part 58 between the slots 6-3 and 4-3. Only the angle is first
A second salient pole 4- located at a position shifted from the salient pole 4-1 of
A third phase armature winding 51-3 is wound around the third phase armature winding 51-3.

One effective conductor portion 51 of the armature winding 51-5 for the fifth phase
a is located at the dotted line portion 59 of the slot 6-3 between the salient poles 4-2 and 4-3, and the other effective conductor portion 51b is located at the dotted line portion 59 of the slot 6-3 between the salient poles 4-2 and 4-3.
and 4-4, so that it is located at the dotted line part 60 between the slots 6-4 and 4-4, approximately C4π15 (where C is 2) degrees in electrical angle, that is, 288 degrees in electrical angle (144 degrees in mechanical angle). A third salient pole 4 located at a position shifted from the first salient pole 4-1 by an angle
-3 is wound with the armature winding 51-5 for the fifth phase.

One effective conductor portion 5 of the armature winding 51-2 for the second phase
La is located at the dotted line part 61 of the slot 6-4 between the salient poles 4-3 and 4-4, and the other effective conductor part 51b is located at the dotted line part 61 of the slot 6-4 between the salient poles 4-3 and 4-4.
Approximately d·4π15 (however, d is 3) degrees in electrical angle so as to be located at the dotted line part 62 between slots 6-5 between 4 and 4-5,
That is, the armature winding 51 for the second phase is attached to the fourth salient pole 4-4 located at a position shifted from the first salient pole 4-1 by an angle of 432 degrees in electrical angle (216 degrees in mechanical angle). -2 is wound.

One effective conductor portion 51 of the armature winding 51-4 for the fourth phase
a is located at the dotted line part 63 of the slot 6-5 between the salient poles 4-4 and 4-5, and the other effective conductor part 51b is located at the dotted line part 63 of the slot 6-5 between the salient poles 4-4 and 4-5.
and 4-1, at the dotted line 64 between the slots 6-1 and 4-1. A fourth phase armature winding 51-4 is wound around a salient pole 4-5 located at a position offset from the first salient pole 4-1 by an angle.

That is, the salient poles 4-1 of the rotor armature core 3,...
4-5 includes armature windings 51-1.51-3.5 in sequence.
1-5.51-2゜51-4 are each 144 in electrical angle
The rotor armature 52 is constructed by winding the wires with the phase shifted by degrees.

In addition, as shown in FIG. 20, the armature winding 51-1.51
One terminal of -3.51-5.51-2.51-4 is
Commutator pieces 54-1.54-3.54-5, respectively
．． 54-7. -2.54
-4.54-6.54-8.54-10.

Furthermore, the commutator pieces 54-1 and 54- are in the same phase and are out of phase by 2π (=360 degrees) in electrical angle.
6.54-2 and 54-7゜54-3 and 54-8.54-
4 and 54-9, and 54-5 and 54-10 are electrically connected.

Note that connecting the commutator pieces that are out of phase by an electrical angle of 2π is not as easy as in the conventional 5-phase DC motor 1 described above, so this can be easily done. To be able to do it.

Usually, in-phase positions with a phase shift of 2π in electrical angle form crossover wires to facilitate electrical connection of appropriate commutator pieces as shown in FIGS. 18 and 19. Five printed power distribution patterns 65-1.
. . , 65-5 are used to form the commutator pieces 54-1 and 54-, which are in the same phase position and are out of phase by 2π (=360 degrees) in electrical angle.
6゜54-2 and 54-7.54-3 and 54-8゜54-
4 and 54-9, and 54-5 and 54-10 are electrically connected.

The printed wiring board 53 has a 360 degree (electrical angle) pattern formed by etching or other means to facilitate electrical connection of five commutator pieces that are out of phase by 360 degrees in electrical angle.
Printed power distribution patterns 65-1 for forming five connecting wires formed to extend in the radial direction in a spiral manner by an angle of 180 degrees in mechanical angle. . . . The conductive parts 66 and 67 on the inner and outer peripheries of 65-5 are soldered using short conductive wires, or the printed wiring board 53 is formed with a short radius and directly connected to appropriate commutator pieces. By soldering the conductive parts 66 and 67, the troublesome means of electrically connecting appropriate commutator pieces using conductive wires forming long crossover wires can be omitted.

Referring to FIG. 20, the brushes 12-1 and 12-2 are arranged at an opening angle of 180 degrees in electrical angle (90 degrees in mechanical angle), are in sliding contact with commutator 54, and are connected to the positive power supply terminal. 13-1. The armature winding 5 is connected to the armature winding 5 via the commutator 54 from the negative side power supply terminal 13-2.
1-1. ....

By sequentially supplying current to 51-5, the rotor armature 5
2 obtains rotational torque and rotates in a predetermined direction relative to the field magnetic pole 50.

According to the 5-phase DC motor 49, the commutator 54 is composed of 10 commutator pieces, which is 5 more commutator pieces than the 5-phase DC motor 1. When the commutator 54 rotates once, the current is switched 20 times correspondingly, so the number of torque ripples is doubled compared to the 5-phase DC motor 1, so smooth rotation is required. becomes possible.

Furthermore, since the windings of the armature winding 51 group to the rotor armature core 3 can be mounted so that the armature winding 51 group does not overlap each other at the conductor end 68, the five-phase DC motor 1, Compared to the 44- and 10-phase DC motors 14, the conductor end 68 is extremely easy to process and can be easily wound, so that it can be mass-produced at low cost.

Such a conventional improved five-phase DC motor 49 is easy to wind, has excellent mass productivity, and has smooth torque ripple, so it is useful because it rotates smoothly.

Yet again. When this five-phase DC motor 49 was actually manufactured, it was found that the cogging torque was very small and it rotated more smoothly than expected.

However, in the five-phase DC motor 49, the commutator pieces located in the same phase are electrically connected to each other by soldering using conductive wires forming long crossover wires, or in order to form the above-mentioned crossover wires. Printed power distribution pattern 65-1.
. . . Since the commutator pieces must be electrically connected to each other by soldering using the printed power distribution board 53 formed with 65-5, the manufacturing process increases accordingly, and the drawback is that mass production is not possible at low cost. was there.

In addition, this five-phase DC motor 49 has a very low cogging torque and can perform smooth rotation, but since it has only five salient poles, the cogging torque can be suppressed even further and the cogging torque can be kept very low. However, it was not sufficiently suitable for use in equipment that must rotate smoothly. here.

In order to keep the cogging torque small, it is possible to increase the thickness of the gap between the field magnetic poles and the rotor armature core, as shown in the above 10-phase DC motor 14, or to form the salient poles in a skewed manner. However, doing so has the drawback of causing a torque phenomenon.

[Invention Section! l] The present invention replaces the conventional 10-phase DC motor 14 having 10 salient poles and 10 commutator pieces with the conventional 5
Similar to the phase DC motor 49, the armature windings can be wound so as not to overlap each other, and a 5-phase DC motor is obtained which is superior in performance and cost to the above-mentioned 10-phase DC motor. The objective of this invention was to obtain a 5-phase DC motor that can rotate more smoothly by reducing cogging torque ripple in terms of cogging compared to the 5-phase DC motor 49. .

Another problem is that even if the armature windings are wound so that they do not overlap each other by performing a two-phase transition, in order to smooth the torque ripple, the number of phases of a five-phase motor must be twice the number of phases, that is,
Even if a commutator with 0 commutator pieces is used, the commutator pieces can be electrically connected to each other by soldering using conductive wires forming long crossover wires as in the past, or printed power distribution pattern 65-1 to form a line;
..., 65-5, the salient poles 4- of the rotor armature core 3 can be connected without electrically connecting the commutator pieces in the same phase position to each other by soldering.
1. ..., the first line is drawn by a conductor as shown in 4-5.
By simply winding the five armature windings for phase to fifth phase automatically in a predetermined order, the predetermined commutator pieces can be automatically connected to each other using the terminal wires of the armature windings. By electrically connecting the five armature windings for the 1st to 5th phases, their conductor ends connect to the conductors of other armature windings at the ends of the rotor armature core. The objective of this invention was to make it possible to mass-produce a 5-phase DC motor that does not overlap the ends and has excellent mass-productivity at a lower cost and is easier to mass-produce.

[Means for achieving the object of the present invention] The object of the present invention is to adjust the magnetic poles of the N and S poles to 1 electrical angle.
The stator is equipped with four field magnetic poles with a width of 80 degrees and an equal opening angle, and the rotor armature cores facing the field magnetic poles with an air gap are spaced at equal intervals of 2 electrical degrees.
1st to 10th 1s formed to be shifted by an angle of π15
0 salient poles are formed, and the electrical angle is a・4π15 degrees (however,
A first salient pole formed at a position where a is 0) and a second salient pole formed at a position separated from the first salient pole by an electrical angle of b・2π15 (however, b = 1) degrees. The armature winding for the first phase is wound across the gap, and the electrical angle C from the first salient pole is wound.
・The third salient pole formed at a position separated by an angle of 2π15 (where C is 2) degrees and the electrical angle d・
The armature winding for the third phase is wound across the fourth salient poles formed at an angle of 2π15 (where d is 3) degrees apart, and the electrical angle from the first salient pole is So e・2π15(
However, e is the fifth point formed at a position separated by an angle of 4) degrees.
and a sixth salient pole formed at a position separated by an electrical angle of f·2π15 (where f is 5) degrees from the first salient pole. Wind the wire, and the electrical angle from the first salient pole is g・2π15 (however, 1g is 6)
A seventh salient pole is formed at a position separated by an angle of 150 degrees, and an eighth salient pole is formed at a position separated by an electrical angle of h·2π15 (where h is 7) degrees from the first salient pole. A second phase armature winding is wound across the poles, and a second phase armature winding is formed at a position separated from the first salient pole by an electrical angle of i·2π15 (where i is 8) degrees. The electric machine for the fourth phase is connected between the salient pole No. 9 and the tenth salient pole formed at a position separated from the first salient pole by an electrical angle of j·2π15 (where j is 9) degrees. A rotor armature is formed by winding a child winding, and a commutator consisting of ten commutator pieces (first to tenth) formed successively adjacent to the rotor armature is provided, and a positive side power terminal is connected to the rotor armature. A first brush connected to the commutator and a second brush connected to the negative power terminal are arranged at an electrical angle of 180 degrees and are brought into sliding contact with the commutator. It is constructed so that current is passed through the five-phase armature winding. Other objects of the present invention, which are achieved by providing a five-phase DC motor in which the armature windings do not overlap, will become clear in the following description.

[Embodiments of the Invention] A five-phase DC motor 69 of the present invention will be described with reference to FIGS. 1 to 5.

Since the 5-phase DC motor 69 of the present invention uses the rotor armature core 17 of the conventional 10-phase DC motor 14 as described above, the rotor armature core 17 has 10 thrust rails as described above. 8-1,..., 18-10 and ten winding insertion slots 2 formed by these
1-1, . . . , 21-10. Therefore, common parts are given the same reference numerals.

The explanation will be omitted.

Figure 1 shows five armature windings 70 for the first to fifth phases.
-1. . . . depicts a rotor armature 71 in which 70-5 is wound around the rotor armature core 17, and a field magnetic pole 50 consisting of the same four magnetic poles used in the five-phase DC motor 49 forming the stator. FIG. 2 is an exploded perspective view showing the main parts of a five-phase DC motor 69 of the present invention, and FIG.
1, and FIG. 3 shows the rotor armature core 17 without armature windings and the field magnetic pole 5 forming the stator.
A plan view of the same electric motor showing the relationship with 0 (however.

Fig. 4 is a plan view of the same five-phase DC motor 69 (however, the motor main body is omitted), and Fig. 5 shows the field magnetic poles 50 and the first Five armature windings 70-1, . . . , 70-5 for phases to fifth phase and ten commutator pieces 72-1. ..., shows an arm diagram with a commutator 72 consisting of 72-10.

Similarly to the above, the field magnetic pole 50 is a four-pole type having four magnetic poles, each of which is magnetized with a width of 90 degrees in mechanical angle (180 degrees in electrical angle). There is. In addition, the rotor armature core 17, which is made by laminating silicon steel plates, is arranged at 9 equal intervals of 72 degrees in electrical angle (36 degrees in mechanical angle).
Ten salient poles 18-1, first to tenth, extending in the radial direction and deviating from each other at intervals of 18-1. ..., with 18-10.

The ten salient poles 18-1. ..., 18-10 include five armature windings 70-1 for the first phase to the fifth phase.
..., 70-5 are equipped with windings, but this winding method is significantly different from that of the conventional five-phase DC motor 49, so this winding method will be explained later.

Note that this different winding method is very useful and will be explained later; however, in the present invention, it is not necessarily necessary to adopt this winding method. A winding method may also be adopted, but since there is little point in explaining such a conventional winding method, a useful winding method will be adopted and explained in the present invention.

That is, in the five-phase DC motor 69 of the present invention, the third
As shown in Fig. 4, the armature winding 70- for the first phase is
One effective conductor portion 70a (see FIG. 5) of salient pole 1
Dotted line part 73 of slot 21-1 between 8-10 and 18-1
The other effective conductor portion 70b (see FIG. 5) is located at
The slot 21- between the salient poles 18-2 and 18-3 has an electrical angle of a·4π15 (however,
a is 0) degree, that is, the first salient pole 18-1 located at the 0 degree position (the same is true when expressed in mechanical angle) and the electrical angle from the salient pole of the first salient pole 18-1. The armature for the first phase straddles the second salient pole 18-2 located at a distance of b・4π15 (where b is 1) degrees, that is, 72 degrees (36 degrees in mechanical angle). A winding 70-1 is wound. One effective conductor part 70a of the armature winding 70-3 for the third phase is the dotted line part 7 of the slot 21-/ between the salient poles 18-2 and 18-3.
6, which is located at a distance of C·4π15 (where C is 2) electrical degrees from the first salient pole 18-1, that is, 144 degrees (72 degrees mechanically). It is separated from the salient pole 18-3 of No. 3 and the salient pole of the first salient pole 18-1 by d·4π15 (however, d is 3) degrees in electrical angle, that is, 216 degrees (108 degrees in mechanical angle). The third phase armature winding 70-3 straddles the fourth salient pole 18-4 located at the position
is wound. One effective conductor part 70a of the armature winding 70-5 for the fifth phase is located at the salient pole part 77, and the other effective conductor part 70b is located in the slot between the salient poles 18-6 and 18-7. 21-/dotted line part 7
e in electrical angle from the first salient pole 18-1 so that it is located at
・The salient poles of the fifth salient pole 18-5 and the first salient pole 18-1 located at positions separated by 4π15 (where e is 4) degrees, that is, 288 degrees (144 degrees in mechanical angle) M f in electrical angle from
・The armature winding for the fifth phase straddles the sixth salient pole 18-6 located at a position 4π15 (where f is 5) degrees, that is, 360 degrees (180 degrees in mechanical angle) apart. 70-5 is wound. One effective conductor part 70a of the armature winding 70-2 for the second phase is connected to the first salient pole 18-1 so as to be located in the salient pole wire part 80 in electrical angle g·4π15 (however, 9
g is 6) degrees, that is, h in electrical angle from the salient poles of the seventh salient pole 18-7 and the first salient pole 18-1 located at a distance of 432 degrees (216 degrees in mechanical angle). 4π15 (however,
h is 7) degrees, that is, the armature winding 70-2 for the second phase is wound across the eighth salient pole 18-8 located at a distance of 504 degrees (252 degrees in mechanical angle). It is lined. The other effective conductor part 70b is located in the armature winding part 81' for the fourth phase, and the other effective conductor part 70b is located in the slot 21 between the salient poles 18-1] and 18-1.
-1/r so that the first salient pole 18 is located at the dotted line part 82.
The ninth salient pole 18-9 and the first salient pole are located at a distance of l·4π15 (where i is 8) degrees in electrical angle from -1, that is, 576 degrees (288 degrees in mechanical angle). A tenth salient pole 18-10 located in the device at a distance of j·4π15 (where j is 9) degrees in electrical angle from the salient pole 18-1, that is, 648 degrees (324 degrees in mechanical angle). A fourth phase armature winding 70-4 is wound across the two. However, unlike the conventional five-phase DC motor 49, when the winding method of the present invention, which will be explained below, is adopted, as will be clear from the following, the commutator pieces that are in the same phase are connected using conductive wires. There is no need to use a printed power distribution board on which a printed power distribution pattern forming a crossover wire is formed to make an electrical connection by soldering.

More specifically, the salient poles 18-1 and 18-2, 18-3 and 18-4, 18-5 and 18-6 of the rotor armature core 17.
18-7 and 18-8 and 18-9 and 18-10 have armature windings 70-1.70-3.70-5.7o-
2°70-4 is 144 degrees in electrical angle (7 in mechanical angle)
The rotor armature 71 is constructed by winding the rotor armature 71 with a phase shift of 2 degrees), and the armature winding 70-1.70 as shown in FIG.
-3.70-5.70-2゜One terminal of 70-4 is
Commutator pieces 72-1, 72-3, 72-
5.72-7゜72-9 electrically connected, armature winding 70-1, 70-3, 70-5, 70-2, 70-4
The other terminals of the commutator pieces 72-2.7
It is electrically connected to 2-4.72-6.72-8.72-1O, but as will be clear from the following, commutator pieces in the same phase position can be connected using conductive wires or crossover wires. There is no need for electrical connection by soldering using a printed power distribution board on which a printed power distribution pattern is formed.

That is, in the five-phase DC motor 69 of the present invention, as described above, the four field magnetic poles 50 are provided as a stator, and the rotor armature cores 17 are shifted in phase by 72 degrees in electrical angle. 10th to 10th salient poles 18-1 to 18 in total
-10 are formed at equal intervals, and ten commutator pieces 72-1, 1st to 10th, are formed successively adjacent to the rotor. ..., 72-10 is provided, and the first commutator 72 is connected to the positive power supply terminal 13-1.
The brush 12-1 and the second brush 12-2 connected to the negative power terminal 13-2 are arranged at an opening angle of 90 degrees in mechanical angle (180 degrees in electrical angle) to the commutator 72. They are in sliding contact.

After the lead-out terminal wire (conductor wire) 84 forming one terminal of the armature winding 70-1 is engaged with the engaging portion 85 formed on the first commutator piece 72-1 and electrically connected. , the first salient pole 18 located at the electrical angle a·4π15 degrees (a=0)
-1 and the electrical angle from the first salient pole 18-1 is b・4π1
A conducting wire is wound across the second salient poles 18-2 formed at positions separated by an angle of 5 (b=1) to form the armature winding 70-1 for the first phase.

Thereafter, the lead terminal wire 86 forming the other terminal of the armature winding 70-1 is guided to the engaging portion 87 of the second commutator piece 72-2 and electrically connected.

Furthermore, the pullout terminal wire 88 guided to the engaging portion 87 of the second commutator piece 72-2 is connected to the lower end surface of the rotor armature core 18 (
part) 17a (see FIG. 2; it may be the upper end surface of the rotor armature core 17 near the commutator 72, but in this embodiment, the lower end surface 17a is used). Engaging portion 8 of the seventh commutator piece 72-7 that is in the same phase position as the second commutator piece 72-2 and out of phase by an electrical angle of 2π
9 and connect electrically.

The lead-out terminal wire 90 guided to the engaging portion 89 of the seventh commutator piece 72-7 constitutes one terminal of the armature winding 70-2, and is connected to the electrical angle from the first salient pole 18-1. h·4 in electrical angle from the seventh salient pole 18-7 and the first salient pole 18-1 formed at a position separated by an angle of g·4π15 degrees (g = 6).
A conductive wire is wound across the eighth salient pole 18-8 formed at a position separated by an angle of π15 degrees (h=7) to form a second phase armature winding 70-2. do.

A lead-out terminal wire 91 forming the other terminal of the armature winding 70-2 is guided to and electrically connected to the engaging portion 92 of the eighth commutator piece 72-8, and further The lead-out terminal wire 93 led to the piece 72-8 is placed along the lower end surface 17a of the rotor armature core 17, and is placed in the same phase position electrically out of phase with the eighth commutator piece 72-8 by an angle of 2π. It is guided to the engaging portion 94 of the third commutator piece 72-3 and electrically connected.

The lead-out terminal wire 95 guided to the engaging portion 94 of the commutator piece 72-3 becomes one terminal of the armature winding 70-3, and is connected to the first salient pole 70-1 in electrical angle.・4π15 degrees (
d·4π in electrical angle from the third salient pole 18-3 and the first salient pole 18-1 formed at a position separated by an angle of c=2)
The third phase armature winding 70-3 is formed by winding a conductive wire across the fourth salient pole 18-4 formed at a position separated by an angle of 15 degrees (d=3). do.

The lead-out terminal wire 96 constituting the other terminal of the third armature winding 70-3 is connected to the engaging portion 9 of the fourth commutator piece 72-4.
7 and connect electrically.

The lead terminal wire 98 guided to the engaging portion 97 of the fourth commutator piece 72-4 is connected to the lower end surface 17a of the rotor armature core 17.
along the electrical angle of 2π with the fourth commutator piece 72-4.
The ninth commutator piece 72 is in the same phase position and is out of phase by an angle of
-9 to the engaging portion 99 for electrical connection.

A lead-out terminal wire 100 forming one terminal of the armature winding 70-5 led to the engaging portion 99 of the commutator piece 72-9.
The electrical angle of the first salient pole 18-1 is i・4π15 degrees (i
9th salient pole 1 formed at a position separated by an angle of =8)
8-9 and the first salient pole 18-1 in electrical angle j・4π1
The first one formed at an angle of 5 degrees (j=9〉)
After forming the armature winding 70-4 for the fourth phase by winding a conductor across the salient poles 18-10 of o, the other terminal of the armature winding 70-4 is formed. Pull-out terminal wire 10
1 to the engaging portion 102 of the tenth commutator piece 72-10 and electrically connected thereto.

The lead terminal wire 103 guided to the engaging portion 102 of the tenth commutator piece 72-10 is connected to the tenth commutator piece 72-10 by an electrical angle of 2π along the lower end surface 17a of the rotor armature core 17. The armature windings are guided and electrically connected to the engaging portion 104 of the fifth commutator piece 72-5 that is in the same phase position and whose phase is shifted by an angle of . line 70-5
The lead wire 105 constituting one terminal of the fifth salient pole 18-5 is formed at a position away from the first salient pole 18-1 by an electrical angle of e·4π15 degrees (e=4>). and from the first salient pole 18-1 in electrical angle f·4π15 degrees (f=5
) The sixth salient pole 18- is formed at a position separated by an angle of
Winding the conductor across 6 and winding the armature winding 7 for the 5th phase
0-5 is formed into a winding.

A lead terminal wire 106 forming the other terminal of the armature winding 70-5 is led to an engaging portion 107 formed on the sixth commutator piece 72-6 and electrically connected.

The lead wire 108 guided to the engaging portion 107 is placed along the lower end surface 17a of the rotor armature core 17 to an in-phase position where the phase is shifted by an electrical angle of 2π with respect to the sixth commutator piece 72-6. The rotor armature 71 is formed by guiding and electrically connecting to the engaging portion 85 of the first commutator piece 72-1.

In the above, starting from the first commutator piece 72-1, the armature windings 70-1, . . . , 70-
5 and the commutator segments 72-1, . . . , 72-10 groups are electrically connected, but this is for the convenience of explanation. It goes without saying that wires or electrical connections may be used. Also, the lead terminal wires 84, 86, 88.90, 91°93.9
5,96,98,100,101゜103.105,1
06.108 has a different code for convenience of explanation, but all of the armature windings 70-1, . . . , 70-5 are continuously formed by the same conducting wire. be.

Also, the engaging portions 85, 87, 89, 92, 94°97.99
, 102, 104. 107 connected to the extraction terminal wires 84, 86, 88, 90° 91.93.95.96.9
8,100゜101.103,105,106,108
Electrical connection with and fixing at that position is made using the engaging portion 85.
．． 87.89.92.94,97,99゜102.10
4.107 can be easily carried out by an appropriate means such as pressing with a press or the like.

As is clear from the above description, in the five-phase DC motor 69 of the present invention, the conductor end 83 does not overlap with other armature windings.

[Effects of the Invention] According to the 5-phase DC motor 69 of the present invention, the number of commutator pieces is increased by 5 compared to the 5-phase DC motor 1.
Since the commutator 72 made up of commutator pieces is used, when the commutator 72 rotates once, the current is switched 20 times, compared to a 5-phase DC motor 1. Since the number of torque ripples is doubled, that is, the number of torque ripples is increased by 10, extremely smooth rotation can be achieved. In addition, unlike the 10-phase DC motor 14 and the 5-phase DC motor 44, the conductor ends do not overlap with other armature windings, so the length and amount of the conductor ends are reduced, resulting in armature resistance. The motor is also smaller and more efficient, and since the electric motor does not have to be large in the axial direction and there is no troublesome processing of the conductor ends, it can be mass-produced at low cost and easily.

Also, as in the five-phase DC motor 49, the number of phases is twice the number of motor phases to smooth out torque ripples and to prevent armature windings from overlapping with other armature windings. Even if phase transition is performed, it is possible to solder the commutator pieces in the same phase to each other using conductive wires in the post-processing stage, or to solder them using a printed wiring board on which an appropriate printed power distribution pattern is formed. without making any electrical connections.
Simply guide one conductor wire to a predetermined salient pole and commutator piece in a predetermined order like a single stroke, and use appropriate means to tightly fix the commutator piece and the conductor wire so that they are electrically connected. This makes it possible to inexpensively and easily mass-produce a highly efficient 5-phase DC motor that has conductor ends that are short in the axial direction without overlapping, excellent for mass production, and that rotates extremely smoothly with little torque ripple. .

Furthermore, compared to the five-phase DC motor 149 of the five salient pole type, the five-phase DC motor 69 of the present invention has five more salient poles.
Since there are 0 salient poles, the number of cogging torque ripples is also doubled, so it is possible to obtain a smoothly rotating five-phase DC motor in which the size of ripples due to cogging torque is halved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the main parts of the five-phase DC motor of the present invention, Fig. 2 is a bottom perspective view of the rotor armature of the same motor, and Fig. 3 is an unwound armature winding. A plan view showing the rotor armature core and the 4-pole field magnetic pole (however, the diagram of the motor body is omitted). Figure 4 shows the rotor armature with the armature winding wound and the 4-pole field magnetic pole. A plan view of a 5-phase DC motor with magnetic poles (however, the diagram of the motor body is omitted), Figure 5 shows 4 field magnetic poles and 5 electric motors for the 1st to 5th phases. Figure 6 is an exploded view of a child winding and a commutator made up of 10 commutator pieces, with no armature winding installed to explain a conventional salient pole type five-phase DC motor. FIG. 2 is a plan view showing the relationship between a rotor armature core and two field magnetic poles that serve as a stator. Fig. 7 is a perspective view of the rotor armature of the conventional five-phase DC motor, and Fig. 8 is a plan view of the conventional five-phase DC motor (however, the illustration of the motor body is omitted). Figure 9 shows two field magnetic poles and five electric machine pre-windings for the 1st to 5th phases.
Developed diagram of a commutator consisting of a line and five commutator pieces, No. 10
The figure is a plan view showing the relationship between the rotor armature core without armature windings and the field magnetic poles forming the stator of a 10-phase DC motor (however, the motor body is omitted) ,
FIG. 11 is an exploded perspective view showing the main parts of a 10-phase DC motor having 10 armature windings. Fig. 12 is a developed view of a commutator consisting of two field magnetic poles, 10 armature windings for the 1st to 10th phases, and 10 commutator pieces, and Fig. 13 is a different one. A plan view of a 5-phase DC motor (however, the motor body is not shown) to explain a conventional 5-phase DC motor. Figure 14 shows the two field magnetic poles and the FIG. 3 is a developed view of armature windings for one phase to five phases and a commutator having ten commutator pieces. FIG. 15 is a plan view showing the relationship between the rotor armature core without armature windings and the four field magnetic poles forming the stator in a conventional improved five-phase DC motor ( However, the motor body is not shown), Fig. 16 is a plan view of the same five-phase DC motor (however, the motor main body is omitted), and Fig. 17 shows the rotor armature core in Fig. 15. A perspective view of a rotor armature equipped with five armature windings for the first to fifth phases.
FIG. 19 is a perspective view of the rotor armature with the printed wiring board shown in FIG. 18 partially cut away, and FIG. It is a country that has developed a commutator consisting of field magnetic poles, five armature windings for the first to fifth phases, and ten commutator pieces. [Explanation of symbols] 1: Conventional 5-phase DC motor, 2: Rotor armature, 3: Rotor armature core. 4.4-1. ..., 4-5... Salient pole. 5... Armature winding, 5-"1... Armature winding for first phase, 5-2... Armature winding for second phase. 5-3... Armature winding for second phase. Armature winding for 3 phases. 5-4... Armature winding for 4th phase. 5-5... Armature winding for 5th phase. 6.6-1. ..., 6-5-...Slot. 7...Conductor end. 8-1....8-10...Dotted line part. 9...Commutator, 9-1....,9 -5... Commutator piece, 10... Rotating shaft, 11゛... Field magnetic pole, 1
2-1.12-2...Brush. 13-1...Positive side power supply terminal, 13-2...Negative side power supply terminal, 14...10-phase DC motor. 15... Commutator. 15-1. ..., 15-10... Commutator piece. 16... Field magnetic pole, 16-1... N-pole field magnet,
16-2... S-pole field magnet. 17... Rotor armature core, 17a... Lower end surface, 1
8-1. ..., 18-10... salient pole. 19-1... Armature winding for the first phase. 19-2... Armature winding for second phase. 19-3... Armature winding for third phase. 19-4... Armature winding for the fourth phase. 19-5... Armature winding for the fifth phase. 19-6... Armature winding for the 6th phase. 19-7... Armature winding for the 7th phase. 19-8... Armature winding for the 8th phase. 19-9... Armature winding for the 9th phase. 19-10... Armature winding for the 10th phase. 19a, 19b... effective conductor portion, 20... void, 2
1-1. ..., 21-10... Winding insertion slot, 22. ..., 41... Dotted line portion, 42... Rotor armature, 43... Conductor end, 44... 5-phase DC motor, 45... Commutator, 45-1. ...
, 45-10... Commutator piece, 46... Armature winding. 46-1... Armature winding for the first phase. 46-2... Armature winding for second phase. 46-3... Armature winding for third phase. 46-4... Armature winding for the fourth phase. 46-5... Armature winding for the fifth phase. 46a, 46b... Effective conductor portion, 47... Rotor armature, 48... Conductor end. 4...Improved conventional 5-phase DC motor. 50... Field magnetic pole, 51... Armature winding. 51-1... Armature winding for the first phase. 51-2... Armature winding for second phase. 51-3... Armature winding for third phase. 51-4... Armature winding for the fourth phase. 51-5... Armature winding for the fifth phase. 51a... One effective conductor part, 51b... Other effective conductor part, 52... Rotor armature. 53... Printed wiring board, 54... Commutator, 54
-1. ..., 54-10... Commutator piece, 54.
..., 64... Dotted line part. 65-1. ..., 65-5... Printed power distribution pattern, 66.67... Conductive part, 68... Conductor end, 69... 5-phase DC motor. 70-1... Armature winding for the first phase. 70-2... @mature winding for the second phase. 70-3... Armature winding for third phase. 70-4... Armature winding for the fourth phase. 70-5... Armature winding for the fifth phase. 71... Rotor armature, 72... Commutator. 72-1. ..., 72-10... Commutator piece. 73,..., 82...Dotted line portion, 83...Conductor end, 84...Output terminal wire. 85... Engagement portion, 86... Output terminal wire. 87.88.89...Engagement part. 90.91... Pull-out terminal wire, 92... Engagement part,
93... Pull-out terminal wire, 94... Engaging portion, 95.
96...Output terminal wire. 97...Engagement portion, 98...Output terminal wire. 99...Engaging portion, 100, 101... Pull-out terminal wire, 102... Engaging portion, 103... Pull-out terminal wire, 104... Engaging portion, 105° 106... Pull-out terminal Line, 107... Engagement part, 108... Output terminal wire.

Claims (2)

[Claims] (1) A stator is equipped with a field magnetic pole having four N-pole and S-pole magnetic poles at equal opening angles with a width of 180 degrees in electrical angle, and is rotatable through the air gap with the field magnetic pole. The provided rotor armature core forms ten salient poles, the first to the tenth, which are spaced apart from each other by an angle of 2π/5 in electrical angle, and have an angle of a·4π/5 in electrical angle. (However, a is 0)
between the first salient pole formed at the position of At the same time, the armature winding for the first phase is wound, and from the first salient pole, the electrical angle is c・2π/
The third salient pole formed at a position separated by an angle of 5 (where c is 2) degrees and the electrical angle d・2π/5 from the first salient pole.
(However, d is 3) The armature winding for the third phase is wound across the fourth salient poles formed at an angle of 3 degrees, and the armature winding for the third phase is wound at an electrical angle from the first salient pole. e・2π/5 (however, e
4) A fifth salient pole formed at a position separated by an angle of 15 degrees, and a second salient pole formed at a position separated by an electrical angle of f・2π15 (where f is 5) degrees from the first salient pole. The armature winding for the 5th phase is wound across the 6 salient poles, and is separated from the 1st salient pole by an electrical angle of g・2π/5 (however, g is 6) degrees. Straddling between the seventh salient pole formed at the position and the eighth salient pole formed at a position separated from the first salient pole by an electrical angle of h·2π/5 (where h is 7) degrees. second
A ninth salient pole is formed by winding a phase armature winding, and is formed at a position separated from the first salient pole by an electrical angle of i・2π/5 (where i is 8) degrees. The armature winding for the fourth phase spans between the tenth salient poles formed at a position separated from the first salient pole by an electrical angle of approximately j·2π/5 (where j is 9) degrees. A rotor armature is formed by winding a wire, and a commutator consisting of 10 commutator pieces, numbered 1 to 10, formed adjacent to the rotor armature in sequence is provided, and connected to the positive side power supply terminal. The first brush connected to the negative side power supply terminal and the second brush connected to the negative power terminal are arranged at an open angle of 180 degrees in electrical angle and are brought into sliding contact with the commutator. A 5-phase DC motor configured to conduct current through the armature windings of the motor, in which the armature windings do not overlap. (2) In the above-mentioned five-phase DC motor, after electrically connecting the conductor to the first commutator piece, the wire is wound across the first and second salient poles to form the armature for the first phase. After the winding is formed, it is guided to a second commutator piece and electrically connected, and the conductive wire guided to the second commutator piece is passed along the end of the rotor armature core to the second commutator piece. After guiding and electrically connecting the commutator piece to the seventh commutator piece at the same phase position as the commutator piece, the armature winding for the second phase was wound across the seventh and eighth salient poles. After that, the conducting wire is guided to the eighth commutator piece and electrically connected, and the conducting wire guided to the eighth commutator piece is passed along the end of the rotor armature core to the eighth commutator piece. After electrically connecting the conductor wire to the third commutator piece that is in the same phase as the wire, and forming the armature winding for the third phase across the third and fourth salient poles, the conductor wire is The conductor wire guided to the fourth commutator piece is electrically connected to the fourth commutator piece, and the conductor wire guided to the fourth commutator piece is placed along the end of the rotor armature core so as to be in the same phase as the fourth commutator piece. After guiding the conductor to the ninth commutator piece and electrically connecting it, forming the armature winding for the fourth phase across the ninth and tenth salient poles, the conductor is connected to the tenth The 10th commutator bar is electrically connected to the commutator bar.
The conducting wire led to the commutator piece is guided along the end of the rotor armature core to a fifth commutator piece located in the same phase as the tenth commutator piece, and is electrically connected to the fifth commutator piece. After forming the armature winding for the fifth phase by straddling the conducting wire led to the commutator piece between the fifth and sixth salient poles, the conducting wire is led to the sixth commutator piece. electrically connected, and guiding the conductive wire led to the sixth commutator piece along the edge of the rotor armature core to the first commutator piece at the same phase position as the sixth commutator piece. A five-phase DC motor in which armature windings do not overlap, as set forth in claim (1), which forms a rotor armature by electrically connecting them.