JPS6151504B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a particularly effective DC motor in which a plurality of armature windings are arranged in a disc-shaped or cylindrical ironless armature.

Conventionally, a large number of iron core motors have been used that use lap windings or wave windings having a plurality of armature windings. However, when adopting conventional windings as they are in ironless motors,
There are various drawbacks as explained based on the first illustration. Figure 1 shows the deployable winding of a lap-wound armature consisting of 20 armature windings and 10 field magnetic poles when conventionally known lap-wound windings are used in a coreless electric motor. It is a line diagram. Field magnetic pole 1 is
Magnetic pole 1-1 magnetized to N and S poles with an opening angle of 36 degrees,
It consists of 1-2,..., 1-10. The commutator 3 is a commutator piece 3 with an opening angle of 18 degrees (1/2 of the magnetic pole width)
-1, 3-2, ..., 3-20, each of five commutator pieces separated by an opening angle of 72 degrees (2/1 of the magnetic pole width) is electrically connected by a conductive wire, etc. that serves as a short-circuiting member. There is a short circuit. That is, commutator pieces 3-1 and 3-5
and 3-9, 3-13 and 3-17, and commutator piece 3
-2 and 3-6 and 3-10 and 3-14 and 3-18,
and commutator pieces 3-3, 3-7, 3-11 and 3-1
5 and 3-19, and commutator pieces 3-4, 3-8 and 3
-12 and 3-20 are shorted. The armature 2 is an open connection regular lap winding in which the opening angle of the conductor portion contributing to the generated torque of each armature winding is made equal to the magnetic pole width. Armature winding 2-1, 2-2,...,
2-20 are stacked in multiple layers at equal pitches with an opening angle of 18 degrees (1/2 of the magnetic pole width).
Each armature winding is connected by lap winding, and armature winding 2
-1 and 2-2, 2-2 and 2-3, 2-3 and 2-
4,...,2-19 and 2-20,2-20 and 2-1
The connection parts are commutator pieces 3-2, 3-3, and 3, respectively.
-4,..., 3-20, 3-1.
Symbols 4-1, 4-2 are DC power supply positive and negative poles 5-1, 5
- 2, the brushes are shown sliding on the commutator pieces, and the opening angle is 180 degrees (the width of the magnetic poles).
5/1), but the opening angle is 36 degrees (magnetic pole width), or 108 degrees (3/1 of the magnetic pole width), or 252 degrees (7/1 of the magnetic pole width), Alternatively, an opening angle of 324 degrees (9/1 of the magnetic pole width) is equivalent and can be implemented. In addition, as shown by the dotted lines, brushes 4-1, 4-
It is clear that by using the commutator bars 2, . . . , 4-10, the aforementioned short circuit between the commutator pieces becomes unnecessary. That is, brushes 4-1, 4-3, 4-5, 4-
7, 4-9 is the brush 4- from the DC power supply positive electrode 5-1.
2, 4-4, 4-6, 4-8, and 4-10 are each supplied with power from the DC power supply negative pole 5-2, and each opening angle is 36 degrees (magnetic pole width). In the illustrated related positions, electricity is applied in the direction of the arrow, torque is generated in each armature winding, and the armature 2 and commutator 3 become commutator motors rotating in the directions of arrows A and B, respectively.

As can be seen from the above explanation, according to this embodiment,
Since the armature windings are superimposed in multiple layers, the thickness of the armature increases. Such thicknesses have the disadvantage of significantly weakening the effective magnetic field passing through the armature, reducing efficiency and starting torque. For this reason, in the past, efforts have been made to reduce the thickness of the conductor portion that contributes to the generated torque. However, since this process is performed by pressure molding etc.
There were many defective products such as armature winding breakage and short circuits. Furthermore, since the mutual phase relationship is not regulated when arranging the armature windings, the phase relationship tends to shift, making it extremely difficult to obtain a highly efficient DC electric paulownia.The manufacturing process is also complicated and mass production is difficult. It had become boring and expensive.

In order to eliminate the above drawbacks, it may be possible to reduce the number of armature windings, but the following drawbacks arise. Because the number of armature windings is small, the number of times the armature current switches during one relative rotation between the armature and the field magnetic poles is reduced, resulting in poor rectification characteristics, and counter torque is likely to occur, resulting in high efficiency. and reduce starting torque. Furthermore, the number of armature windings that exist between the positive and negative poles of a DC power supply becomes extremely small, making it impossible to use it as a high-voltage DC motor, increasing the occurrence of sparks and causing short-circuit accidents. The durability of the electric motor is reduced.

In addition, in the method used for conventional ironless motors equipped with cylindrical armatures, insulated wires are wound one by one in an aligned manner to avoid overlapping the ends of the winding width, either by winding the entire winding width or by winding a part of it. The method used is to wind diagonally to the width of the winding, alternately fold back at both ends every 180 degrees, and then wind continuously in order to form a cylindrical armature, but even in this case, it is not suitable for mass production and is expensive. It had become a thing.

The present invention provides a field magnetic pole having 2m (2n+1) magnetic poles (m is an integer of 1 or more, n is an integer of 2 or more), and 2mn armature windings, as well as armature and field magnetic poles. The armature current is switched 2mn (2n + 1) times during one rotation relative to the magnetic poles (in the case of a commutator motor, this is the number of times when the opening angle of the brush itself is extremely narrow, and it does not necessarily correspond to the state shown in the example). (The point where one brush comes into sliding contact with two commutator pieces is called a singular point, and this is the number of times excluding this point, and the same applies to the examples described later.) By providing the , it is possible to obtain a DC motor with high efficiency and good rectification characteristics. Next, the details of the device of the present invention having the above effects will be explained with reference to the second diagram.

FIG. 2 is an explanatory diagram of the configuration of a commutator motor provided with a disk-shaped armature. A bearing 10 is fixed to a pressed mild steel casing 8, and a pressed mild steel casing 7 is fixed to the casing 8 with screws 16 to form a magnetic path. A bearing 9 is fixed to the housing 7 , a rotating shaft 6 is supported on the bearings 9 and 10 , and one end of the rotating shaft 6 is pressed against the housing 8 . An annular field magnetic pole 1 whose N and S magnetic poles are magnetized in the direction of the rotation axis is adhered and fixed to the housing 8 . An armature 12 and a commutator 13 that are integrally molded are fixed to the rotating shaft 6. Armature 1
2 is configured to be interposed in the air gap magnetic field between the housing 7 and the field magnetic pole 11. A brush holder 15 holds the brush 14 that comes into sliding contact with the commutator 13.

Next, referring to FIGS. 3 to 6, a description will be given of an embodiment in which the present invention is applied to a commutator motor provided with the above-mentioned disc-shaped armature.

What is shown in Figure 3 is the case where m = 1, n = 2, that is, the field magnetic poles are 2m (2n + 1) = 10 magnetic poles, the armature windings are 2mn = 4 pieces, and the commutator pieces are 2mn (2n + 1) = 10 magnetic poles.
1) is an exploded winding diagram of an embodiment consisting of 20 pieces. This is an embodiment of the present invention in which the number of armature windings is smaller than that of the conventional embodiment shown in FIG. Field magnetic pole 1
7 is a magnetic pole 17-1, 17- which is magnetized in the direction of the rotation axis at an opening angle of 36 degrees to N and S poles as shown in Fig. 4a.
2, . . . , 17-10, and corresponds to the field magnetic pole 11 shown in the second diagram. The commutator 19 serving as a rectifier is
Commutator piece 19 with an opening angle of 18 degrees (1/2 of the magnetic pole width)
Consisting of 1, 19-2, ..., 19-20,
360/m (2n+1) = 72 degree opening angle (2/1 of magnetic pole width)
Just left. Each of m(2n+1)=5 commutator pieces are electrically short-circuited using a conductive wire or the like serving as a short-circuiting member. That is, commutator pieces 19-1, 19-5, 19-9, 19-13, and 19-17, and commutator pieces 19-2, 19-6, 19-10, and 19-14.
and 19-18, and commutator pieces 19-3 and 19-7
and 19-11 and 19-15 and 19-19, and commutator pieces 19-4 and 19-8 and 19-12 and 19-
16 and 19-20 are short-circuited, and the second
This corresponds to the commutator 13 shown in the figure. The armature 18 has armature windings 18-1, 18-2, 18-3, 18-4
are arranged as shown in FIG. 4b and are integrally molded. That is, each armature winding is arranged at an equal pitch with an opening angle of 90 degrees (5/2 of the magnetic pole width) without overlapping. The conductor part (armature winding 18-1) that contributes to the generated torque of the armature winding
In the case of 18-1-a, 18-1-b)
The opening angle is 36 degrees, which is equal to the magnetic pole width. Each armature winding has magnetic poles 17-1, 17- of the field magnetic pole 17.
2,..., 17-10 respectively magnetically
They are arranged with a phase angle of 360/2n=90 degrees to form a disc-shaped armature, and the armature 12 shown in the second figure
corresponds to Returning to Figure 3, armature winding 18-1
One end is connected to commutator piece 19-3, and the other end is connected to commutator piece 1.
Similarly, both ends of the armature winding 18-2 are connected to commutator pieces 19-8 and 1.
9-9, both ends of the armature winding 18-3 are connected to commutator pieces 19-13 and 19-14, respectively, and both ends of the armature winding 18-4 are connected to commutator pieces 19-18 and 19-14, respectively.
Connected to 19-19. That is, field magnetic pole 1
In the corresponding state of each armature winding with respect to the magnetic poles 17-1, 17-2, ..., 17-10 of 7, the armature winding that is in the state closest to the state of each arbitrary armature winding with respect to the magnetic pole. The terminals of the armature windings and the terminals of any of the armature windings described above are connected via commutator pieces so that the winding directions of each armature winding are in the same direction, and the same applies to the embodiments described later. It is. Symbols 20-1 and 20-2 are DC power supply positive and negative poles 2
Shows the brushes that are supplied with power from 1-1 and 21-2 and slide on the commutator pieces, and the opening angle is 180.
degree (5/1 of the magnetic pole width), but 360/2m
(2n+1) = 36 degree opening angle (pole width), or 108 degree opening angle (3/1 of magnetic pole width), or 252 degree opening angle (7/1 of magnetic pole width), or 324 degree opening angle (9/1 of magnetic pole width)
However, it is equivalent and can be implemented. In addition, as shown by dotted lines, the brushes 20-1, 20-2,
. . , 20-10, it is clear that short-circuiting between the commutator pieces becomes unnecessary, as described above. That is, 360/m(2n+1)=
m(2n+1) = 5 at an opening angle of 72 degrees (2/1 of the magnetic pole width)
The first group of brushes 20-1, 20-3, 20-
5, 20-7, 20-9 are DC power supply positive electrode 21-1
Therefore, m(2n+1)=5 second group brushes 20-
2, 20-4, 20-6, 20-8, 20-10
are each supplied with power from the DC power supply negative electrode 21-2, and the distance between the first group of brushes and the second group of brushes is 360/2m.
The opening angle (magnetic pole width) is (2n+1)=36 degrees, and similar means can be used in the embodiments described later. At the related positions shown in the figure, electricity is applied in the direction of the arrow, torque is generated in each armature winding, and the armature 18 and commutator 19 are moved to arrows A and B, respectively.
Rotate in the direction. In this way, the armature current is switched at a rate of 2mn (2n + 1) = 20 times (excluding singular points) during one rotation, and a continuous torque is generated, resulting in a rotating commutator motor.

The case shown in Figure 5 is when m = 1 and n = 3, that is, the field magnetic poles are 2m (2n + 1) = 14 magnetic poles, the armature windings are 2mn = 6 pieces, and the commutator pieces are 2mn (2n + 1) = 14 magnetic poles.
1) is an expanded winding diagram of an embodiment consisting of 42 windings. The field magnetic pole 22 is about 25.7 mm as shown in FIG. 6a.
It consists of magnetic poles 22-1, 22-2, . The commutator 24, which serves as a rectifier, has an opening angle of approximately 8.6 degrees (the width of the magnetic poles).
1/3) commutator pieces 24-1, 24-2,..., 24
- Consists of 42, 360/m (2n+1) = 360/
7 = m (2n + 1) = 7 commutator pieces separated by an opening angle of about 51.4 degrees (2/1 of the magnetic pole width) are electrically short-circuited using a conductive wire or the like serving as a short-circuiting member. That is, commutator pieces 24-1, 24-7, 24-13, 24-19, 24-25, 24-31, and 24-3
7, and commutator pieces 24-2, 24-8, and 24-1
4 and 24-20 and 24-26 and 24-32 and 24
-38, and commutator pieces 24-3, 24-9 and 24
-15 and 24-21 and 24-27 and 24-33 and 24-39, and commutator pieces 24-4 and 24-10
and 24-16 and 24-22 and 24-28 and 4-3
4 and 24-40, and commutator pieces 24-5 and 24-
11 and 24-17 and 24-23 and 24-29 and 2
4-35 and 24-41, and commutator pieces 24-6, 24-12, 24-18, 24-24 and 24-3
0, 24-36, and 24-42 are short-circuited, respectively, and correspond to the commutator 13 shown in the second diagram. The armature 23 has armature windings 23-1, 23-2,..., 23
-6 are arranged as shown in FIG. 6b and are integrally molded. That is, each armature winding is arranged at an equal pitch with an opening angle of 60 degrees (7/3 of the magnetic pole width) without overlapping. The conductor part (armature winding 23) that contributes to the generated torque of the armature winding
23-1-a and 23-1-b)) is approximately 25.7 degrees, which is equal to the magnetic pole width. Each armature winding is connected to the magnetic pole 22 of the field magnetic pole 22.
1, 22-2, . This corresponds to child 12. Returning to FIG. 5, one end of the armature winding 23-1 is connected to the commutator piece 24-4, the other end is connected to the commutator piece 24-5, and the other end is connected to the armature winding 23-2 in the same way. Both ends of the commutator piece 24
-11, 24-12, both ends of the armature winding 23-3 are connected to commutator pieces 24-18, 24-19, respectively.
, both ends of the armature winding 23-4 are connected to the commutator pieces 24-25, 24-26, respectively, and the armature winding 23-4 is connected to the commutator pieces 24-25, 24-26, respectively.
Both ends of 5 are commutator pieces 24-32, 24-
33, both ends of the armature winding 23-6 are connected to commutator pieces 24-39 and 24-40, respectively. Symbols 20-1 and 20-2 are DC power supply positive and negative poles 2
The brush shown is powered by 1-1 and 21-2, respectively, and slides on the commutator piece.
1) = 360/14≒Opening angle of approximately 25.7 degrees (magnetic pole width), or opening angle of approximately 77.1 degrees (3/1 of magnetic pole width), or approximately
An opening angle of 128.6 degrees (5/1 of the pole width), or an opening angle of approximately 231.4 degrees (9/1 of the pole width), or an opening angle of approximately 282.9 degrees (11/1 of the pole width), or approximately 334.3 degrees. It is equivalent and can be implemented with an opening angle of (13/1 of the magnetic pole width). In the illustrated related positions, electricity is applied in the direction of the arrow, torque is generated in each armature winding, and the armature 23 and commutator 24 rotate in the directions of arrows A and B, respectively.
In this way, the armature current is switched at a rate of 2mn (2n+1) = 42 times (excluding singular points) during one rotation, and a continuous torque is generated, resulting in a rotating commutator motor.

FIG. 7 is an explanatory diagram of the configuration of a semiconductor motor provided with a disk-shaped armature. A bearing 29 is fixed to the pressed mild steel case 28 , and a pressed mild steel case 27 is fixed to the case 28 with screws 35 . A rotating shaft 25 holding a turntable 26 is rotatably supported on the bearing 29, and a magnetic rotor 30 is fixed to the rotating shaft 25 via a magnetic holder 30a. A position detection band 32 is fixed to the outer periphery of the magnet rotor 30 in a ring shape. A magnetic rotor 30 serving as a field is provided with N and S magnetic poles magnetized in the direction of the rotation axis, and a mild steel disk 31 serving as a magnetic path is attached to the upper surface. An armature 34 is attached to the inner surface of the casing 28, and the casing 28
The magnet rotor 30 is configured to be interposed in an air gap magnetic field between the magnet rotor 30 and the magnet rotor 30. Reference numeral 33 denotes a support for the position detection element, which is held in a hole provided in the housing 27. The lower part of the bearing 29 has a threaded part on the outer periphery and is screwed onto the female thread 29-1 to connect the rotating shaft 25.
This makes it possible to adjust the thrust direction.

Next, referring to FIG. 8, a description will be given of an application of the present invention to a semiconductor motor provided with the above-mentioned disk-shaped armature. In the case of m=1, n=2, that is,
Field magnetic poles are 2m (2n+1) = 10 magnetic poles, armature winding is
2mn = 4, and the armature current switches 2mn (2n + 1) = 20 times in one rotation (in the case of semiconductor motors, the point where the armature current switches is called a singular point, and this is the number of times excluding this point. FIG. 2 is an exploded winding diagram of an embodiment comprising a rectifying device with a ratio of . The magnet rotor 36, which serves as field magnetic poles, has magnetic poles 36-- which are magnetized in the direction of the rotation axis at N and S poles with an opening angle of 36 degrees.
Consisting of 1, 36-2, ..., 36-10, arrow C
The magnetic rotor 30 shown in FIG.
corresponds to The armature 37 has armature winding 37-1,
37-2, 37-3, 37-4 are arranged in FIG. 4b with exactly the same opening angle as described, and form a stator. That is, each armature winding is arranged at an equal pitch with an opening angle of 90 degrees (5/2 of the magnetic pole width) without overlapping. The conductor part (armature winding 37-) that contributes to the generated torque of the armature device
In the case of No. 1, the opening angle of the portions 37-1-a and 37-1-b is 36 degrees, which is equal to the magnetic pole width, and corresponds to the armature 34 shown in FIG. Each armature winding is connected in series, armature windings 37-1 and 37
-2, 37-2 and 37-3, 37-3 and 37-
The connection between 4, 37-4 and 37-1 is connected to the positive electrode 41- of the DC power supply via a commonly used energization control circuit 38.
1. Connected to the DC power supply negative pole 41-2. Symbols 39-1, 39-2, 39-3, and 39-4 are position sensing elements, for example, Hall elements, induction coils, etc. are used. The opening angle of each is 90 degrees (5/2 of the magnetic pole width). position detection element 39-1,
39-2, 39-3, and 39-4 are accommodated in the support body 33 shown in FIG. 7, and are opposed to the position detection band 32. When the position detection element is a Hall element, the magnetic poles 36-1, 36 of the magnet rotor 36
-2,...,36-10 leakage magnetic flux to the outside can be utilized. Symbol 40 is the shaded part 40-1,
40-3, 40-5, 40-7, 40-9 are N poles, and the dot portions 40-2, 40-4, 40-6, 4
This is a position detection band whose south poles are 0-8 and 40-10, and corresponds to the position detection band 32 shown in FIG.
Hall element 39-1, 39 when facing the S pole
-2, 39-3, 39-4 conducts the corresponding transistors of the first group included in the energization control circuit 38, and the armature winding corresponding to the DC power supply positive electrode 41-1 becomes conductive. . Also, the Hall elements 39-1, 39-2, 3 when facing the N pole
The energization control circuit 38 is activated by the outputs of 9-3 and 39-4.
The corresponding transistors, etc. of the second group included in the DC power source negative electrode 41-2 are made conductive, and the armature winding corresponding to the DC power supply negative electrode 41-2 is made conductive. The armature winding is configured to be controlled by these conductions. That is, in the illustrated related position, the output of the Hall element 39-3 facing the S pole conducts the corresponding transistor of the first group, and the DC power supply positive electrode 41-1 and the armature windings 37-3 and 37- The connection part 4 becomes conductive. Also, the Hall element 39 facing the N pole
1 conducts the corresponding transistor of the second group, and connects the DC power supply negative electrode 41-2 and the armature winding 37.
The connection between -1 and 37-2 becomes electrically conductive. Therefore, the current is applied in the direction of the arrow, and torque is generated in each armature winding, and the magnet rotor 36 and the position detection band 40
rotate in the directions of arrows C and D, respectively. Thus, the switching of armature current during one rotation is 2 mn.
This is done at a rate of (2n+1) = 20 times (excluding singular points), and a continuous torque is generated to rotate. Since this energization method is the same as that of a commonly used semiconductor motor, the magnet rotor 36 and the position detection band 40 form a semiconductor motor that rotates in the directions of arrows C and D. Although the above-described embodiment is a case in which the field magnetic poles are 10 and the number of armature windings is 4, other embodiments can be similarly applied to semiconductor motors.

In all of the embodiments described above, the present invention is applied to a disc-shaped armature, but it is obvious that it can also be applied to a cylindrical armature, and furthermore, it can be similarly applied to an iron core electric motor. Furthermore, as stated at the beginning, the present invention has 2mn armature windings for a field magnetic pole having 2m (2n+1) magnetic poles, and 2mn (2n+1) armature current switching during one rotation.
1) The object of the present invention can be achieved in all cases where a rectifying device is provided that performs the rectification at a rate of 1). Therefore, in addition to the embodiments described above, it is applicable to any case, such as 8 armature windings in the case of 18 poles, 10 armature windings in the case of 22 poles, etc. Furthermore, although all of the embodiments described above are for the case where m=1, the same application can be made by multiplying the number of magnetic field poles, the number of armature windings, etc. by an integer m, and all the armature windings have the same pitch. The armature is theoretically balanced and is extremely effective when used as a rotor.Moreover, the thickness of the armature can be made thin because the armature windings are arranged without overlapping each other, and the structure is The present invention has the characteristics that it is possible to obtain a DC motor with high torque, high efficiency, and good rectification characteristics.

As can be seen from the above description, according to the present invention, the objects stated at the beginning are achieved and the effects are significant.

[Brief explanation of the drawing]

Fig. 1 is an exploded winding diagram of a conventionally known field pole and armature, Fig. 2 is an explanatory diagram of the configuration of a commutator motor, and Figs. 3 and 5 are diagrams in which the present invention is applied to a commutator motor. FIGS. 4a and 4b are exploded winding diagrams of different field pole and armature embodiments, respectively; FIGS.
Figures a and b are exploded views of the embodiment of the field magnetic pole and armature shown in Figure 5, Figure 7 is an explanatory diagram of the configuration of a semiconductor motor, and Figure 8 is a field magnetic pole in which the present invention is applied to a semiconductor motor. and an expanded winding diagram of an example of the armature, respectively. 1... Field magnetic poles having magnetic poles 1-1, 1-2,..., 1-10, 2... Armature windings 2-1, 2-2,
..., 2-20 armature, 3... commutator piece 3-
Commutator with 1, 3-2, ..., 3-20, 4-
1,4-2,...,4-10,14,20-1,2
0-2,...,20-10...brush, 5-1,21-
1,41-1...DC power supply positive pole, 5-2,21-
2, 41-2... DC power supply negative electrode, 6, 25... Rotating shaft, 7, 8, 27, 28... Housing, 9, 10, 29
... Bearing, 11... Field magnetic pole, 12, 34... Armature,
13... Commutator, 15... Brush holder, 16, 35...
Screw, 17... Magnetic pole, 17-1, 17-2,..., 1
Field magnetic poles having 7-10, 18...armature winding 1
Armature having 8-1, 18-2, 18-3, 18-4, 18-1-a, 18-1-b...armature 1
8-1 conductor portion contributing to the generated torque, 19... commutator having commutator pieces 19-1, 19-2,..., 19-20, 22... magnetic poles 22-1, 22-2,
..., 22-14, 23... armature having armature windings 23-1, 23-2, ..., 23-6, 23-1-a, 23-1-b... armature windings Conductor portion 24 that contributes to the generated torque of line 23-1
... Commutator piece 24-1, 24-2, ..., 24-42
a commutator having a turntable, 26, a turntable, 30...
Magnetic rotor, 30a... Magnetic holder, 31... Mild steel disc, 32... Position detection band, 3
3... Support body, 36... Magnetic poles 36-1, 36-2,
..., 36-10 magnetic rotor, 37
... Armature winding 37-1, 37-2, 37-3, 3
Armature with 7-4, 37-1-a, 37-1
-b...Conductor portion contributing to the generated torque of armature winding 37-1, 38...Electrification control circuit, 39-1, 39
-2,39-3,39-4...Position detection element, 40
... A position detection zone having 40-1, 40-2, ..., 40-10 parts.

Claims (1)

[Claims] 1 2m (2n
+1) field magnetic poles (m is an integer of 1 or more, n is an integer of 2 or more), a magnetic body for closing the magnetic path of the field magnetic poles, and 2mn armature windings. are arranged with a magnetic phase angle of 360/2n degrees, respectively, and an armature provided facing the field magnetic poles in the magnetic path, and a connection between the armature and the field magnetic poles. A rectifier that switches the armature current at a rate of 2mn (2n + 1) times (excluding singular points) during one relative rotation, and a rectifier that rotatably supports the armature or field magnetic pole and is installed in the outer casing. an armature winding that is in a state closest to the state of each arbitrary armature winding with respect to the magnetic pole in the corresponding state of the armature winding with respect to the field magnetic pole; and a terminal of any of the armature windings described above are connected together with a rectifier so that the winding directions of each armature winding are in the same direction. DC motor. 2. In the claim set forth in item 1, 2mn (2n+1) commutator pieces forming a rectifier,
Connect the terminals of the armature winding corresponding to the prescribed commutator pieces, and also connect the terminals of the armature windings corresponding to each of the prescribed commutator pieces, and set them apart by an opening angle of 360/m (2n + 1) degrees (2/1 of the magnetic pole width).
It is equipped with a short-circuiting member that electrically shorts the individual commutator pieces, and supplies power to the armature winding from the positive and negative poles of the DC power supply through a brush that slides on the commutator pieces. Opening angle 360/2m (2n+1)
A direct current motor with non-overlapping armature windings characterized by an opening angle (magnetic pole width) of 1.5 degrees or an opening angle between the commutator pieces and the commutator pieces connected in common. 3. In the claim set forth in item 1, 2mn (2n+1) commutator pieces forming a rectifier,
A first group of m(2n+1) brushes that slide on the commutator piece at an opening angle of 360 m/(2n+1) degrees (2/1 of the magnetic pole width) and are commonly connected to the positive pole of the DC power supply; The first group of m (2n+1) brushes slide on the commutator pieces at an opening angle (magnetic pole width) of 360/2m (2n+1) degrees, and the second group of brushes is connected in common to the negative pole of the DC power supply. m(2n+1) brushes, the terminals of the armature winding corresponding to each predetermined commutator piece are connected, and power is supplied to the armature winding via the first and second groups of brushes described above. A DC motor with non-overlapping armature windings, characterized by: 4. In the scope of the claim set forth in item 1, the invention is comprised of a position detection element that detects the rotational position of the rotor, and an energization control circuit that controls the armature current through the detection output obtained from the position detection element. A DC motor with non-overlapping armature windings characterized by: