JPH0984308A - Armature manufacturing method - Google Patents

Abstract

(57) An object of the present invention is to provide a method of manufacturing an armature having a simplified structure, which can be manufactured in a short time and which can eliminate the concern of incorrect connection. SOLUTION: An end portion 50a of a conducting wire 48 is wound around and fixed to a pin member 46a. Next, the three protrusions 3 of the iron core 34
The conducting wire 48 is wound around 2a to 32c to form the coil 40a. Then, the conducting wire 48 is wound around and fixed to the pin member 46b, and the conducting wire 48 is wound around the protrusions 32b to 32d to form the coil 40b. Similarly, coil 40c
To form ~ 40r. Next, the end 50b of the coil 40r
Is wound around the pin member 46a integrally with the end portion 50a and fixed. The armature 30 is obtained by joining the pin members 46a to 46r and the conducting wire 48 by soldering.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for manufacturing an armature.

[0002]

2. Description of the Related Art Conventionally, an armature 10 which constitutes an electric motor.
Is a protruding portion 12a that extends radially as shown in FIG.
.About.12r, and three protrusions adjacent to the iron core 14, for example, protrusions 12a to 12c, 1
The coils 16a to 16r straddle like 2b to 12d
Is wound, and a yoke portion 18 is mounted so as to surround the protrusions 12a to 12r.

This armature 10 has coils 16a through 16a in the axial direction of the armature 10 as shown by the hatched portion A in the figure.
Since parts of 16r overlap each other, the armature 10 becomes large in the axial direction, and as a result, the motor itself incorporating the armature 10 becomes large.

In order to eliminate such a problem, as shown in FIGS. 8 and 9, the coils 22a-2 of the armature 20 are provided.
Two protrusions close to 2f, for example, protrusions 12a to
12c, 12d to 12f, and the coil 22a is wound on the core 14 and is arranged inside the iron core 14 in the radial direction.
There is a manufacturing method in which the coils 22g to 22l are wound on the outer side of the coil 22g to 22f, that is, on the outer side in the radial direction of the iron core 14, and similarly, the coils 22m to 22r are wound on the outer side of the coils 22g to 22l. In this case, the coils 22g-2
2l is displaced from the coils 22a to 22f by one protrusion, and the coils 22m to 22r are similarly displaced from the coils 22g to 22l by one protrusion, and each coil is The respective terminals of 22a to 22r are joined to the terminal members 26a to 26r of the commutator 24.

[0005]

However, in the above-mentioned conventional armature 20, since the number of terminals of the coils 22a to 22r is large and the number of connecting points is large, the coil 22 is not formed.
The work of joining the terminals a to 22r to the terminal members 26a to 26r is complicated and time-consuming, and also causes the incorrect connection.

In order to solve such a problem, as disclosed in Japanese Patent Publication No. 58-54583, the terminals of the coil are bent to form a different number of convex shapes depending on the joints. There is a known method for facilitating the discrimination of terminals. However, this method is complicated because it is necessary to confirm the difference in the number of convex shapes before joining. In addition, there is a problem that it is impossible to prevent erroneous connection due to human error such as overlooking a convex shape.

The present invention has been made to solve the above-mentioned various problems, and it is possible to easily connect the terminals of the coil and eliminate the concern of incorrect connection, and also to simplify the structure. An object of the present invention is to provide a method for manufacturing an armature that can be manufactured.

[0008]

In order to solve the above-mentioned problems, the present invention provides a plurality of coils having an iron core having a plurality of protrusions and winding a conductive wire around the protrusions. In the method for manufacturing an armature having, a step of forming a coil by winding a conductive wire over two or more of the protrusions,
The step of engaging the lead wire with the pin member provided on the terminal member of the commutator continuously from the coil, and the lead wire on the two or more protrusions including a part of the protrusion around which the coil is wound. A step of forming a coil of the next stage by continuously winding the coil from the pin member, and by repeating the above step, the coils are sequentially connected to the plurality of protrusions in a state where each coil is continuously connected by a conductive wire. Winding step, the pin member,
Joining the lead wire engaged with the pin member to electrically connect the terminal member and the lead wire.

According to the present invention, since each coil is connected to the adjacent coil by a continuous conductive wire and joined to the terminal member, the terminals of the coil can be easily connected and the fear of incorrect connection can be eliminated. it can.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a method for manufacturing an armature according to the present invention will be described below in detail with reference to the accompanying drawings.

1 and 2, reference numeral 30 indicates an armature according to an embodiment of the present invention. This armature 30
Is a plurality of protrusions (teeth) 32a to 32r on the outer peripheral portion.
The core 34, the commutator 36 protruding from the center of the core 34 along the axial direction thereof, and the plurality of coils 40a to 40w wound around the protrusions 32a to 32r.
r and a yoke portion 42 mounted on the outer peripheral portion of the iron core 34.
It is composed of

The commutator 36 is provided with a plurality of terminal members 44a to 44r around the commutator 36 at equal distances from each other, that is, in a state where they are electrically insulated from each other, and each of the terminal members 44a to 44r has a conductor. A pin member 46a formed of
To 46r are fixed, and the pin members 46a to 46r are electrically connected to the terminal members 44a to 44r.

The coils 40a to 40r are wound so as to extend over three of the protrusions 32a to 32r. That is, the coil 40a includes the protrusions 32a to 32.
The coil 40b is wound over the c, and the coil 40b has a protrusion 32b.
It seems to be wound over ~ 32d (see FIGS. 3 and 4). The coils 40b to 40a are respectively provided with the protrusion 3
Coil 40a in which two of 2b to 32a are wound in the preceding stage
It is wound in a state of being shared with 40r and has the protrusion 3
It is wound in a state of being overlapped with the protruding direction of 2a to 32r.

The coils 40a to 40q and the adjacent coils 40b to 40r are continuously connected by a conducting wire 48 wound around the coils 40a to 40r, and the conducting wire 48 is wound by one of the coils 40a to 40r. Each of them is wound around the pin members 46b to 46r and joined to the terminal members 44b to 44r by soldering. In addition, the conducting wire 48 of the coil 40a at the beginning of winding and the coil 40r at the end of winding
The ends 50a and 50b are integrally wound around the pin member 46a and joined to the terminal member 44a by soldering.

Next, the protrusions 32 of the coils 40a-40r
The winding method for a to 32r will be described.

The coils 40a-40r are shown in FIGS.
It is wound around the protrusions 32a to 32r by the winding device 52 shown in FIG. The winding device 52 includes a tip cover member 54 that is in contact with three adjacent tip portions of the protrusions 32a to 32r to be wound, and the tip cover member 54.
And a flyer 58 that rotates about the shaft member 56. The flyer 58
Is provided with guide rollers 60a to 60c for guiding the conductive wire 48 having the insulating coating formed thereon to the iron core 34.

The winding device 52 has side cover members 62, 6 arranged in front of and behind the tip cover member 54.
4, when the conductor 48 is wound around the protrusions 32a to 32c, the side cover members 62 and 64 contact the protrusions 32p to 32r and 32d to 32f, respectively, and the conductor 48 is protruded from the protrusions 32a to 32c. Other than the protrusions 32d to 32
It is prevented from being wound around r.

Next, the winding device 5 constructed as described above.
2 is used to wind the coils 40a to 40r around the iron core 34,
The procedure for manufacturing the armature 30 will be described.

First, as shown in FIG. 3, the end portion 50a of the conducting wire 48 is wound around the pin member 46a to be engaged therewith, and the two partition plates 66a and 66 are attached to the protrusions 32a to 32c.
b is clamped and mounted from the axial direction of the iron core 34 by sandwiching the protrusions 32a to 32c. Next, the tip end cover member 54 of the winding device 52 is brought into contact with the tip end portions of the protrusions 32a to 32c, and the protrusions 32p to 32r and 32d to 32f arranged before and after the protrusions 32a to 32c. The side cover members 62 and 64 are brought into contact with the tips. Then, in the above state, the flyer 58 is rotated about the shaft member 56, and the conductive wire 48 supplied through the guide rollers 60a to 60c is wound around the protrusions 32a to 32c a predetermined number of times. After the winding work for the protrusions 32a to 32c is completed and the coil 40a is obtained, the partition plates 66a, 6
Remove 6b.

Next, as shown in FIG. 4, the conducting wire 48 is continuously wound around the coil 40a and engaged with the pin member 46b, and the iron core 34 is rotated by only one projecting portion to rotate the winding device 52 to the coil 40b. Set to the winding position. The partition plates 66a, 66 are provided outside the already wound coil 40a, that is, outward in the radial direction of the iron core 34.
b is attached and the flyer 58 is rotated to rotate the protrusions 32b to
A coil 40b is obtained by continuously winding the lead wire 48 around the pin member 46b around the wire 32d. At this time, the conductor 48
Is guided by the partition plates 66a and 66b, and the protrusions 32b to
Since it is wound around 32d, the coil 40b is
0a and the core 34 are prevented from overlapping in the axial direction. The coil 40b includes the protrusions 32b and 32c.
The portion wound around the coil 40a overlaps the outside of the coil 40a,
The portion wound around the protrusion 32d is wound around the deepest part of the iron core 34. After the coil 40b is obtained, the partition plates 66a and 66b are removed.

Thereafter, as shown in FIGS. 5 and 6, the coils 40c to 40r are similarly wound around the protrusions 32a to 32r. The coils 40b to 40o are arranged in contact with the deepest innermost portions of the coils 40a to 40n and the iron core 34, which are sequentially wound in the preceding stage, but the coils 40p to 40r are already arranged on all of the protrusions 32a to 32r. Coils 40a-4
Since 0o is wound, as shown in FIGS. 1 and 6,
It is wound with little bending.

After all the coils 40a to 40r are wound, the end portion 50b of the conductive wire 48 is wound around and fixed to the pin member 46a integrally with the end portion 50a. At this time, the coils 40a to 40q and the coils 40b to 40r are continuously connected by the conducting wire 48. When the conductor wire 48 wound around the pin members 46a to 46r is soldered, the insulating coating covering the conductor wire 48 is peeled off by the heat of soldering, and the conductor is exposed and joined to the pin members 46a to 46r. 48 and the terminal members 44a to 44r are electrically connected.

As described above, all the coils 40a-4a
After 0r is wound around the iron core 34, the protrusions 32a to 32r
The yoke portion 42 is mounted on the outer peripheral portion of the armature 30 to obtain the armature 30 shown in FIG.

[0024]

According to the armature manufacturing method of the present invention, the following effects and advantages are obtained.

After winding each coil, the respective coils are fixed to the pin member without cutting the conductive wires connecting them, and the next coil is continuously wound. The connection can be made, the fear of incorrect connection can be eliminated, the structure can be simplified and the manufacturing cost can be reduced, and a highly reliable armature can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an armature manufactured by the method according to the present embodiment.

FIG. 2 is a schematic perspective view of the armature shown in FIG.

FIG. 3 is a schematic plan view showing a winding device used in the method of the present embodiment and a state in which a coil 40a is wound by the winding device.

FIG. 4 is a winding device shown in FIG. 3 and a coil 4 thereby.
It is a schematic plan view which shows the state in which 0b was wound.

5 shows the winding device shown in FIG. 3 and the coil 4 thereby.
It is a schematic plan view which shows the state in which 0c was wound.

FIG. 6 is a winding device shown in FIG. 3 and a coil 4 thereby.
It is a schematic plan view which shows the state in which 0d-40r was wound.

FIG. 7 is a schematic plan view of an armature manufactured by a conventional method.

FIG. 8 is a schematic plan view of an armature manufactured by another prior art method.

9 is a perspective view of the armature shown in FIG.

[Explanation of symbols]

30 ... Armature 32a-32r ... Projection part 34 ... Iron core 40a-40r ... Coil 44a-44r ... Terminal member 46a-46r ... Pin member 48 ... Conductor wire

Claims (1)

[Claims] 1. A method of manufacturing an armature, comprising: an iron core having a plurality of protrusions; and a plurality of coils formed by winding a conductive wire around the protrusions, wherein the armature has two or more protrusions. Winding the conductive wire to form a coil, continuously engaging the conductive wire with the pin member provided on the terminal member of the commutator, and one of the protrusions around which the coil is wound. A step of forming the coil of the next stage by continuously winding the lead wire from the pin member on two or more protrusions including a portion, and repeating the above steps to continuously connect the coils with the lead wire. In a state in which the coil is sequentially wound around the plurality of protrusions, the pin member and the lead wire engaged with the pin member are joined to electrically connect the terminal member and the lead wire. And a step of Method of manufacturing a child.