JP3169800B2 - Armature and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armature having a plurality of projections, and a plurality of coils wound around the projections, and a method of manufacturing the same.

[0002]

2. Description of the Related Art An armature constituting a motor usually has a plurality of projections, and a large number of coils are wound around the projections. The winding operation of this coil is performed using a winding device.

FIG. 8 shows that a plurality of protrusions 4a to 4m formed on an armature
a to 6 m (see Japanese Patent Application Laid-Open No. S51-31804).
Gazette). In this case, in the winding device, the coils 6a to 6m cannot be wound on the individual projections 4a to 4m due to a narrow gap between the projections 4a to 4m. Every 4 m is wound.

However, in this way, the coil 6a
When 6 m is wound, a part of the coils 6 a to 6 m is superimposed on the axial direction of the armature main body 2 (a direction orthogonal to the drawing), and the armature main body 2 becomes large accordingly. The problem described above occurs. In addition, each of the protrusions 4a to 4
Since the winding density of the coils 6a to 6m wound around m cannot be sufficiently increased, there is a problem that a high magnetic flux density cannot be obtained.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an armature which can solve the above-mentioned problems, can be made compact, and can obtain a high magnetic flux density, and a method of manufacturing the same. I do.

[0006]

According to the present invention, there is provided an armature having a plurality of projections and a plurality of coils wound around the projections. A plurality of coils do not overlap in the axial direction, are wound without intersecting between the coils wound adjacently, and the adjacent coils are part of a projection on which another coil is wound. Is wound over two or more of the protrusions in a state of being superposed in the protrusion direction of the protrusion, so that the width of the coil with respect to the axial direction of the armature is reduced. It is possible to reduce the size and to increase the magnetic flux density by improving the winding density of the coil itself.

[0007]

1 and 2 show a front view and a side view of an armature 10 according to one embodiment. This armature 1
0 indicates a plurality of projections (teeth) 12a to 12
r formed with the armature main body 14 and the protrusion 12a
A plurality of coils 16a to 16r wound around
Yoke part 1 mounted on the outer peripheral part of the armature main body part 14
8 and has a substantially columnar appearance.

The coils 16a to 16r are wound so as to straddle the three projections 12a to 12r.
In addition, the adjacent coils 16a to 16r have the two projections 12a to 12r wound in the former stage.
r and wound with the projection 12a
To 12r in a protruding direction.

The coils 16a to 16r are shown in FIGS.
Are wound around the projections 12a to 12r. The winding device 20 includes a tip cover member 22 that is in contact with the tips of the three projections 12 a to 12 r to be wound, a shaft member 24 fixed to the tip cover member 22, A flyer 26 that rotates about the member 24. The flyer 26 is provided with guide rollers 28 a to 28 c for guiding the electric wire 30 on which the insulating coating is formed to the armature main body 14. In addition,
The winding device 20 includes side cover members 32 and 34 that perform auxiliary functions of the winding operation by contacting the protrusions 12a to 12r before and after the protrusions 12a to 12r that the tip cover member 22 contacts.

Next, the winding device 2 configured as described above
The procedure for winding the coils 16a to 16r around the armature 10 using 0 will be described.

First, as shown in FIG. 3, an end of the electric wire 30 is wound around a pin member 36 implanted in the side cover member 32 and fixed, and the projections 12a to 12c are
The armature main body 1 shown in FIG.
4. Attach it from the upper and lower two directions. Next, the distal end cover member 22 of the winding device 20 is brought into contact with the distal ends of the projections 12a to 12c, and the projections 12a to 12c are brought into contact with each other.
c, three projections 12p to 12r,
The side cover members 32 and 3 are provided at the tips of 2d to 12f.
4 is abutted. Then, in the above state, the flyer 26 is rotated about the shaft member 24, and the electric wire 30 supplied via the guide rollers 28a to 28c is wound around the protrusions 12a to 12c by a specified number of turns. Projection 1
The winding work for 2a to 12c is completed and the coil 16a
Are obtained, the partition plates 38a and 38b are removed.

Next, the pin member 3 of the side cover member 32
After removing the end of the electric wire 30 fixed to 6, the armature main body 14 is rotated by one of the protrusions 12a to 12r, and the winding device 20 is set to the winding position of the coil 16b (FIG. 4). Then, the partition plates 38a and 38b are mounted on the already wound coil 16a, and the flyer 26 is rotated to wind the electric wire 30 around the protrusions 12b to 12d, thereby obtaining the coil 16b. In this coil 16b, the portions wound around the projections 12b and 12c have partition plates 38a and 38
The portion which comes into contact with the coil 16a via the wire b and is wound around the projection 12d is wound around the innermost portion of the armature body 14. After the coil 16b is obtained, the partition plate 38
Remove a and 38b.

Hereinafter, as shown in FIGS. 5 to 7, coils 16c to 16r are similarly wound around the projections 12a to 12r. The coils 16b to 16o are composed of the coils 16a to 16n and the armature body 14
The coils 16p to 16p
r is the other coil 1 already on all of the protrusions 12a to 12r.
Since the windings 6a to 16o are wound, as shown in FIGS.

As described above, all the coils 16a to 16a-1
6r is wound around the armature body 14, and then the protrusion 12a
The yoke part 18 is mounted on the outer periphery of 12r. In addition,
By taking out the electric wire 30 between the coils 16a to 16r as shown in FIG. 1 and connecting the lead wires to that part and both ends (S and E) of the electric wire,
Connection can be easily performed.

As can be easily understood from FIG. 1, since the coils 16a to 16r are not overlapped in the width direction of the armature main body 14, the width thereof can be set sufficiently thin. Therefore, the motor configured using the armature main body 14 can be reduced in size and weight. Each of the coils 16a to 16r wound around the armature body 14
Are densely arranged, so that a high magnetic flux density can be obtained during use. Therefore, it is possible to provide a motor having an extremely high output.

[0016]

As described above, according to the present invention, since a plurality of coils wound around the armature are not superimposed in the axial direction of the armature, the structure can be made extremely compact. Further, since the coil is densely wound around the armature, an extremely high magnetic flux density can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of an armature according to an embodiment of the present invention.

FIG. 2 is a side view of the armature shown in FIG.

FIG. 3 is an explanatory diagram of a winding device and a winding operation of a coil using the winding device.

FIG. 4 is an explanatory diagram of a winding device and a winding operation of a coil using the winding device.

FIG. 5 is an explanatory diagram of a winding device and a winding operation of a coil using the winding device.

FIG. 6 is an explanatory diagram of a winding device and a winding operation of a coil using the winding device.

FIG. 7 is an explanatory diagram of a winding device and a winding operation of a coil using the winding device.

FIG. 8 is an explanatory diagram of a winding state of a coil in a conventional armature.

[Explanation of symbols]

10. Armature 12a-12r
... Projecting part 14 ... Armature main body part 16a-16r
... Coil 18 ... Yoke part 20 ... Winding device 30 ... Electric wire

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02K 15/09 H02K 3/18

Claims (2)

(57) [Claims] An armature having a plurality of projections and a plurality of coils wound on the projections, wherein a plurality of coils are provided for each of the coils in the axial direction of the armature.
Do not overlap, but intersect between adjacent coils that are wound
The coils are wound without being wound, and the respective coils are wound over two or more of the projections , and the coils wound adjacently share a part of the projections, and In the direction of protrusion
An armature, wherein the coil is superposed and wound. 2. A method of manufacturing an armature having a plurality of protrusions and winding a plurality of coils around the protrusions, wherein a plurality of coils are provided in the axial direction of the armature with respect to each of the coils. Koi
A winding method in which a coil is wound over two or more of the protrusions; and the other coil that is wound adjacently is formed by the protrusion on which the coil is wound. A method of manufacturing an armature, comprising: a step of winding a part of a part of the armature and winding the part in a state of being superimposed in a direction in which the protruding portion protrudes;