JP2638051B2 - DC motor having Y-connected armature winding and method of winding armature winding of the DC motor - Google Patents

Description

The present invention relates to a DC motor having a Y-connection armature winding, and a method of winding an armature winding of the DC motor, particularly an armature core having a plurality of poles. Motor having a Y-connected armature winding wound around and energized through a commutator, and a method of winding the armature winding of the DC motor, wherein at least one of the plurality of armature windings is provided. The two armature windings of the set are wound around the two armature poles with the common terminal serving as the neutral point of the Y connection being interposed therebetween so that the winding directions are opposite to each other. By making it possible to continuously perform winding on the two armature poles without cutting the windings, the number of terminal processes is reduced, and the time required for armature winding is shortened. Can contribute to a significant improvement in winding work efficiency It relates winding method of the DC motor and the armature winding of the DC motor having a Y-connected armature windings.

[Conventional technology]

A DC motor having a conventional Y-connection armature winding is a fourth motor.
According to the method described below with reference to the drawings, the armature winding is configured to include an armature.

FIG. 4 is a winding development view for explaining a conventional winding method of a Y-connection armature winding.
3d is an armature pole, 4a to 4d are coils, 9a to 9d are commutator tongues, terminals for winding connection to commutator pieces corresponding to the armature poles 3a to 3d, and 12 is a common terminal. In addition, those that constitute the neutral point of the Y connection are shown. FIG. 4 shows a conventional example of a winding method of a Y-connection armature winding in an armature having a four-pole structure.

In FIG. 4, first, the wire lead at the beginning of winding is the first wire lead.
After connecting to the commutator tongue 9a of the first armature, it passes through the slot B between the first armature pole 3a and the second armature pole 3b, and
Is wound around the armature pole 3a to form a first coil 4a. The end of the first coil 4a ends at the common terminal 12
(Hereinafter, the connection process for the commutator tongue and the disconnection process after the connection to the common terminal are referred to as terminal processing). Then, the second commutator tongue 9b
After performing terminal processing on the second armature pole 3b and the third armature pole
Is wound around the second armature pole 3b through the slot C between the armature pole 3c and the second coil 4b. Then, a terminal process for the common terminal 12 is performed. Similarly, a third coil 4c and a fourth coil 4d are formed for the third armature pole 3c and the fourth armature pole 3d.
The terminal processing is performed twice each when the coils 4c and 4d are formed. Thus, the first coil 4a to the fourth coil wound in the same direction (counterclockwise in FIG. 4) and Y-connected
4d is formed for the first to fourth armature poles 3a to 3d.

[Problems to be solved by the invention]

In the conventional winding method of the Y-connection armature winding described with reference to FIG. 4, it is necessary to perform terminal processing at the beginning and end of winding every time one coil is formed. That is, two terminal processes are required each time one coil is formed. For example, when performing a Y-connection armature winding for an N-pole armature, the number of terminal processes is (N × 2). Becomes As described above, in the conventional winding method, since the terminal processing must be performed a large number of times, not only the time required for winding becomes long, but also the winding work becomes complicated and the work efficiency is extremely poor. There was a problem. Further, a direct current motor having an armature in which armature winding is performed by a conventional winding method having a long winding time and a low working efficiency has a disadvantage that the cost is high and the price is high.

[Means for solving the problem]

An object of the present invention is to solve the above-described problems. Therefore, a DC motor having a Y-connection armature winding according to the present invention includes at least one set of two armature windings among a plurality of the armature windings. Armature winding wound around the armature pole
Starting from the commutation tongues of the two commutators, they are wound around one armature pole and engaged with the common terminal serving as the neutral point of the Y-connection without cutting the winding, and then connected to the other armature pole. It is characterized in that it is wound in a direction opposite to the winding direction and is terminated at the commutator tongue of another commutator.

Further, according to the method of winding an armature winding of a DC motor having a Y-connection armature winding of the present invention, the winding start of the winding is connected to the first commutator tongue, and then the first winding is connected to the first commutator. First
A first coil formed by winding around the armature pole of the first coil, and engaging the end of the first coil without cutting to the common terminal serving as a neutral point of the Y connection. A wire process, extending the winding engaged with the common terminal without cutting, and winding the winding in the direction opposite to the winding direction with respect to the first armature pole with respect to the second armature pole. Turning a second coil to form a second coil, connecting the end of winding of the second coil to a second commutator tongue corresponding to the second armature pole, and then performing a cutting process; The armature winding is formed by performing the first winding step and the second winding step. Hereinafter, description will be made with reference to the drawings.

〔Example〕

FIG. 1 is a sectional view of an essential part for explaining the configuration of an embodiment of a DC motor according to the present invention, and FIGS. 2A and 2B are respectively a winding method of a Y-connection armature winding according to the present invention. FIGS. 3A and 3B are winding development diagrams for explaining one embodiment of the present invention, and FIGS. 3A and 3B are diagrams for explaining another embodiment of the winding method of the Y-connection armature winding of the present invention. FIG. 1 is a small case, 2 is an armature, 3 is an armature pole,
Is a coil, 5 is a motor shaft, 6 is a bearing, 7 is a brush, 8 is a brush terminal, 9 is a commutator, 10 is a permanent magnet, 11 is a motor
The other symbols correspond to those in FIG.

The embodiment shown in FIG. 1 is a DC motor having basically the same configuration as a known DC motor. That is, each of the motors of the armature 2 fixed to the motor shaft 5 via the brush terminal 8 whose current is held by the small case 1 and the commutator 9 fixed to the motor shaft 5 supported by the bearing 9 The DC motor is configured so that the armature 2 existing in the field formed by the permanent magnet 10 rotates when supplied to the coil 4 wound around the sub pole 3. The armature 2 is configured to have a Y-connection armature winding (illustrated coil 4) formed by a winding method described later with reference to FIGS. Less than,
The winding method of the present invention will be described with reference to FIGS.

FIGS. 2A and 2B are explanatory diagrams relating to a winding method of a Y-connection armature winding in the case of a four-pole armature.

In FIG. 2A, first, a wire lead at the beginning of winding is connected to a first commutator tongue 9a, and then a slot between a first armature pole 3a and a second armature pole 3b is formed. Go through B,
The first coil 4a is formed by being wound around the first armature pole 3a. Then, the end of the wire lead on which the first coil 4a is formed is engaged with the common terminal 12 and then extended without being cut, and passes through the slot B to the second armature pole 3b. The second coil 4b is formed by being wound in a direction opposite to the winding direction of the first coil 4a. Thereafter, the terminal end of the wire lead on which the second coil 4b is formed is connected to the second commutator tongue 9b and cut off. Thus, the first coil 4a and the second coil 4a
And the coil 4b are formed continuously. That is, the terminal processing during this time is twice.

Next, similarly to the step of forming the first coil 4a and the second coil 4b, the third coil 4c and the fourth coil 4d
Is formed. That is, after the wire lead at the beginning of winding is connected to the third commutator tongue 9c, the third armature pole 3c and the fourth
The third coil 4c is formed by passing through the slot D between the armature pole 3d and the third armature pole 3c. Then, the end of the wire lead on which the third coil 4c is formed is engaged with the common terminal 12, then extended without being cut, and passed through the slot D to the fourth armature pole 3d. The fourth coil 4d is formed by being wound in the direction opposite to the winding direction of the third coil 4c. After that, the terminal end of the wire lead on which the fourth coil 4d is formed is connected to the fourth commutator tongue 9d and cut off. Thus, the third coil 4c and the fourth coil 4d
Are continuously formed. That is, the terminal processing during this period is 2
Times.

Next, another embodiment of the winding method of the Y-connection armature winding in the case of the armature having the four-pole configuration shown in FIG. 2B will be described.

The embodiment shown in FIG. 2B is basically the same as that of FIG.
This is a winding method similar to the illustrated embodiment. That is, the step of forming the first coil 4a and the second coil 4b is performed in the same manner as the embodiment shown in FIG. In the embodiment shown in FIG. 2 (A), after forming the second coil 4b, the wire leads are connected to the second commutator tongue 9b to perform terminal processing. However, in the embodiment shown in FIG. 2 (B), the wire lead after the formation of the second coil 4b is connected to the second commutator tongue 9b and is extended without being cut. Connected to third commutator tongue 9c. Then, after the third coil 4c and the fourth coil 4d are formed without being further cut, a terminal process for cutting and connecting the terminal of the wire lead to the fourth commutator tongue 9d is performed. That is, in the embodiment shown in FIG. 2 (B), the first coil 4a can be cut without cutting the wire lead halfway.
To form a desired Y-connection armature winding by continuously forming the fourth coil 4d and then cutting between the second commutator tongue 9b and the third commutator tongue 9c. It is. The crosses shown in FIG. 2 (B) indicate cutting points.

The winding method of the Y-connection armature winding in the 4-pole armature has been described above with reference to FIG. 2. However, the Y-connection armature winding in the other even-pole armature is the same as that of the second embodiment. What is necessary is just to carry out similarly to the winding method demonstrated in connection with the figure. In general, according to the winding method of the present invention, in the case of an armature having an even number of poles, the number of terminal processes performed during all processes is the same as the number of poles.

FIGS. 3 (A) and 3 (B) are explanatory diagrams relating to a winding method of a Y-connection armature winding in the case of an armature having a three-pole configuration.

In FIG. 3A, the steps of forming the first coil 4a and the second coil 4b are performed in the same manner as in the method shown in FIG. 2A. The remaining third coil 4c passes through the slot A between the third armature pole 3c and the first armature pole 3a after connecting the wire lead at the beginning of winding to the third commutator tongue 9c,
The third coil 4c is formed by being wound in the same direction as the winding direction of the first coil 4a (the direction opposite to the winding direction of the second coil 4b). Thereafter, a terminal process for connecting and disconnecting the terminal of the wire lead on which the third coil 4c is formed to the common terminal 12 is performed.

The embodiment shown in FIG. 3B is basically the same as that shown in FIG.
This is a winding method similar to the illustrated embodiment. That is, the step of forming the first coil 4a and the second coil 4b is performed in the same manner as in the embodiment shown in FIG. In the embodiment shown in FIG. 3 (A), after forming the second coil 4b, the wire lead is connected to the second commutator tongue 9b to perform terminal processing. However, in the embodiment shown in FIG. 3 (B), the wire lead after forming the second coil 4b is connected to the second commutator tongue 9b and is extended without being cut. Connected to third commutator tongue 9c. Then, after the third coil 4c is formed without being further cut, a terminal process for connecting and cutting the terminal of the wire lead to the common terminal 12 is performed. That is, in the embodiment shown in FIG. 3 (B), the first coil 4a to the third coil 4c are continuously formed without cutting the wire lead halfway, and then the second commutator tongue 9b is formed. And the third commutator tongue 9c, thereby cutting the desired Y.
This is to implement the connection armature winding. The crosses shown in FIG. 3 (B) indicate cutting points.

The winding method of the Y-connection armature winding in the armature having a three-pole configuration has been described with reference to FIG. 3. What is necessary is just to carry out similarly to the winding method demonstrated in connection with the figure. That is, it is sufficient to repeat the winding process in which the winding for two poles is set as one unit, and then perform the winding for the remaining one pole. Generally, according to the winding method of the present invention,
In the case of an odd-numbered armature, the number of terminal processes performed during the entire process is the number of times obtained by adding 1 to the number of poles.

〔The invention's effect〕

As described above, according to the present invention, a DC motor having a Y-connected armature winding wound around an armature core having a plurality of poles and energized through a commutator, and an armature winding of the DC motor are provided. In the wire winding method, by reducing the number of terminal treatments, it is possible to shorten the time required for armature winding and contribute to a large improvement in winding work efficiency.
A low cost DC motor can be provided by providing a winding method of the connection armature winding and performing armature winding by the winding method.

[Brief description of the drawings]

FIG. 1 is a sectional view of an essential part for explaining the configuration of an embodiment of a DC motor according to the present invention, and FIGS. 2A and 2B are respectively a winding method of a Y-connection armature winding according to the present invention. FIGS. 3 (A) and (B) for explaining an embodiment of the present invention.
Fig. 4 is a winding development diagram for explaining another embodiment of the winding method of the Y-connection armature winding of the present invention, and Fig. 4 illustrates a conventional winding method of the Y-connection electrode winding. FIG. In the drawing, reference numeral 1 is a small case, 2 is an armature, 3 and 3a to 3d are armature poles, 4 and 4a to 4d are coils, 5 is a motor shaft, 6 is a bearing, 7 is a brush, 8 is a brush terminal, 9 is a commutator, 9a to 9d are commutator tongues, 10 is a permanent magnet, 11
Denotes a motor case, and 12 denotes a common terminal.

Claims (2)

(57) [Claims] An armature having a plurality of commutators each having a commutator tongue and an armature winding wound around a plurality of armature poles. In a DC motor having one end connected to a common terminal fixed to the armature and armature windings of the plurality of armature poles connected to a Y connection, at least one set of the plurality of armature windings is provided. The armature winding wound around the two armature poles is wound around one armature pole starting from the commutator tongue of one commutator and serves as a neutral point of the Y connection. The terminal is engaged without cutting the winding, and then wound around the other armature pole in a direction opposite to the winding direction and terminated at the commutator tongue of the other one commutator. A DC motor having a Y-connection armature winding. 2. An armature having a plurality of commutators each having a commutator tongue and an armature winding wound around a plurality of armature poles. In a method of winding an armature winding of a DC motor, one end of which is connected to a common terminal fixed to the armature and the armature windings of the plurality of armature poles are connected in a Y-connection. After the start of winding is connected to the first commutator tongue, the winding is wound around the first armature pole corresponding to the first commutator to form a first coil, and the end of the first coil is wound. Y above
A first winding step of engaging the common terminal serving as a neutral point of the connection without cutting, and extending the winding engaged with the common terminal without cutting the second terminal, A second coil is formed by winding in a direction opposite to a winding direction of the first armature pole with respect to the armature pole, and the end of the second coil corresponds to the second armature pole. And a second winding step of performing a cutting process after connecting to the second commutator tongue to perform the first winding step and the second winding step. A method of winding an armature winding of a DC motor having a Y-connection armature winding.