JPS5950754A - Winding method and device - Google Patents

Abstract

PURPOSE:To lead out the starting and finishing ends of a coil from the same side of the coil by extending excess wire from the starting position of the coil on a bobbin and winding the prescribed number of wires on the bobbin and rotating the bobbin whenever the wire reciprocates. CONSTITUTION:A bobbin 7 is held by flanges 6, 8. A wire 9a is extended from the starting position 0 of the coil, and the end of the wire is elastically held by a holding mechanism, not shown. The wire is fed from a flier, not shown, rotated around the bobbin 7, the wire 9 is wound 1-5 in a direction of an arrow (a), and inverted and wound 6-10 in a direction of an arrow (b). At this time, bobbin 7 is rotated once, and the wire 9a is wound at 01. This operation is repeated to turn the wire in the prescribed number of turns. The wires are led from the same side of the coil, and are adapted for a small-sized motor.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a winding method and a winding apparatus for manufacturing a coil used as an armature coil of an external motor.

Background technology and its problems Traditionally, the armature of flat brushless DC motors has
For example, a coil (1) as shown in FIG. 1 is used. As shown in the figure, this coil (1) is wound in a substantially triangular shape, has an inner diameter hole (1a), and has terminals led out as lead wires (1b) and (1c).

As shown in Figure 2, a plurality of such coils (1) are arranged on a printed circuit board (2) and soldered to a predetermined wiring pattern via lead wires (1b) and (1c), respectively. The armature is then configured.

And the upper surface (1'd) of these coils (1) (first
A magnet on the rotating shore side is arranged opposite to the rotating shaft (see figure) via a predetermined gear tooth. In this case, the lead wire (1b) led out from the end on the winding start side (inside) of the coil (1) passes through the top surface (1d) of the coil (1) as shown in Fig. 1. After being led out to the outside, it is soldered to the wiring pattern.

Therefore, the gap between the upper surface (1d) and the magnet is usually about 0.5111, regardless of the size of the motor, and the conducting wire forming the coil (1) is
Those with a diameter of about 0.1 to 0.5 mm are used.

Therefore, when the lead wire (1b) passes through the upper surface (1d), the gap may be closed and the lead wire (1b) may come into contact with the magnet. Also, the lead wire (1b) is connected to the top surface (
The lead wire (1d) is fixed with adhesive to prevent it from swinging, but when the thickness of this adhesive is added, the lead wire (1d)
b) is more likely to come into contact with the magnet. This problem can be avoided by widening the gap, but widening the gap will reduce the efficiency of the motor.

In order to solve the above problem, conventionally, as shown in FIG. ), and form this wiring pattern (
The lead wire (1b) was connected to 3) with solder (4). However, with this method, soldering inside the inner diameter hole (1a) is difficult, especially for small coils (1a).
) was extremely difficult.

OBJECTS OF THE INVENTION The present invention provides a method and device for winding a coil in which both lead wires can be led out from the outer circumferential side of the coil.

SUMMARY OF THE INVENTION The present invention provides a method for winding the conducting wire around the bobbin a predetermined number of times using a flyer, starting from a predetermined position on the bobbin, and rotating the bobbin in relation to the predetermined number of windings. A conducting wire extending from the beginning of winding to the side opposite to the winding side is wound around the bobbin.

Embodiment FIGS. 4 and 5 schematically show the main parts of a conventionally used winding device.

In the figure, a seven flange (6) is fixed to the shaft (5), and a bobbin (7) is fixed to this flange (6).

This bobbin (7) has a substantially triangular cross-sectional shape that matches the inner diameter hole (1a) of the coil (1). This bobbin (
A flange (8) is detachably attached to the end face of 7).

Note that the flange (8) is omitted in FIG. A flyer (10) equipped with a nozzle (10a) for leading out a conducting wire (9) at the tip is arranged on the side of the bobbin (force). In this winding device, the flyer aO is connected to the bobbin (force By rotating the box in the direction of the arrow, the above nozzle (
A conductive wire (9) led out from the bobbin (10a) is wound around the bobbin.

FIG. 6 shows an embodiment of a winding device according to the present invention to which the above-described winding device is applied, and the same parts as in FIGS. 4 and 5 are given the same reference numerals. Moreover, this FIG. 6 shows the state when winding is started.

In FIG. 6, the conducting wire (9) led out from the nozzle (10a) of the flyer QO) is wound around a part of the bobbin (forced), and then passed through a guide roller αυ (121) so that its tip end It is wound around another bobbin, etc. This bobbin (
The section from 7) to the other bobbin via the guide roller αυlJ3 is defined as the stock portion (9a) of the conducting wire (9).

In addition, each guide roller 0υa21trx spring (14)
(151 is biased in a predetermined direction to hold the stock part (9a) at an appropriate tension. The stock part (9a) can be held by using any other known appropriate means. It's fine.

The shaft (5) is configured to be rotated by a driving means (not shown), and the rotation of the shaft (5) causes the flanges (6) (8) and the bobbin (7) to rotate integrally. has been made. Further, the above driving means is a flyer α0
), so that when the fryer (10) rotates a predetermined number of times, the shaft (5) rotates once.

Figure 7 shows the process of forming the coil (1) using the above-mentioned winding device.
8) and bobbin (only the upper half of the force is shown, and the flyer QO is omitted).

First, as shown in FIG. 7A, the bobbin (the part wound by the force) of the stock part (9a) is in contact with the end face of the flange (6), and this is designated as a conductor (■).In this state, the flyer C1G Rotate the wire (9) led out from the nozzle (10a) to the bobbin (7) in the direction of arrow a.
. . . The wire is wound, for example, five times as in ■ to form one winding layer. Next, as shown in Figure B, move in the direction of the arrow above the winding layer.
....Wound 5 times to make two winding layers. in this case,
When winding (■) is carried out, the shaft (5) is rotated once to wind the conductor wire of the stock part (9a), and the wire is placed on top of the part (■).
Wind it once as . Next, as shown in figure C, 0~
Wind (1), and then wind (1) to [phase] in the b direction as shown in the same figure. When winding this [phase], the shaft (5) is rotated once to set the stock portion (9a) to 0 and wind it on top of the above 0. Similarly, winding is performed in the a and b directions by the flyer α[, and each time the last winding in the b direction is performed, that is, every time the flyer α0 rotates 10 times, the shaft (1
) is rotated once to wind up the stock part (9a), and this is wound in layers as @, @, @)... Then, as shown in FIG. 5E, the winding is completed after a predetermined number of turns (n). Next, the conductor (9) derived from the flyer QOI
For example, cut the end of the lead wire (1C) to a predetermined length.
Then, the end of the stock part (9a) is cut to a predetermined length to form, for example, a lead wire (1b).

Next, by removing the flange (8) and extracting the coil formed on the bobbin (7), a coil (1) as shown in FIG. 8 can be obtained. As shown in the figure, this coil (1) has two lead wires (1b) and (1c) both led out from the outer circumferential side of the coil (1).

In addition, in the above explanation, when the flyer aO performs the 1Cth rotation, the shaft (5) is rotated once, but
Keep the shaft (5) rotating slowly and place it on the fryer Q.
The rotation ratio between the shaft (5) and the shaft (5) may be 10:1.

During this method, for example, as shown in FIG. Although the height h2 between the parts is slightly different, the final result is to adjust the number of layers in the rolled part of the stock part (9a) as shown in the same figure E.
The height may be approximately the same as the number of laminated layers of the portion wound by the flyer α0).

FIG. 9 shows another embodiment of the winding method.

In the embodiment described in FIG. 7, the stock part (9a) is wound in - rows, but in this embodiment, there is a margin below stock part c,
Continued on next page. ) (9a) is wound in multiple rows (0 m row). For this purpose, conductor (9) by flyer σ [■
The winding starts at a distance md (d = diameter of the conductor (9)) from the end face of the flange (6). still,
Conductor wire (9) from stock part [9a) and flyer a0
After each winding is wound in the a direction, it is wound in the b direction, and this is repeated alternately to form a multilayer winding. In this case, it is necessary to shake the stock part (9a) in directions a and b, but this can be done by installing a new guide roller between the bobbin (7) and the guide roller (11), as shown in FIG. The guide roller may be swung in directions a and b.

Effect of the invention Two lead wires (lb) (1c) as shown in Figure 8! - Since it can be led out from the outside of the coil (1), when this coil is used in a brushless motor, the lead wire will not fill the gap with the magnet, and the wiring work will be easier. Further, the coil according to the present invention can be applied not only to motors but also to other applications.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a conventional coil, Fig. 2 is a plan view of an armature of a brushless motor, Fig. 3 is a plan view showing a conventional coil wiring method, and Fig. 4 is a plan view showing an example of the present invention. FIG. 5 is a perspective view of the main parts of the above-mentioned winding device; FIG. 6 is a side view showing an embodiment of the winding device according to the present invention; FIG. 8 is a side view showing an embodiment of the winding method according to the present invention, FIG. 8 is a perspective view of a coil obtained by the present invention, and FIG. 9 is a side view showing an embodiment of another winding method. In addition, in the symbols used in the drawings, (7)...
・・・・・・・・・Bobbin (9)・・・・・・・・・・
・・Conductor aQ・・・・・・・・・・Flyer ti1xI3・
・・・・・・・・・Guide roller. Agent Masaru Ueya Yoshio Tsune Toshiki Sugiura Figure 3! Figure 4 g4

Claims (1)

[Claims] 1. The conductor wire is wound around the bobbin a predetermined number of times using a flyer, starting from a predetermined position on the bobbin, and the bobbin is rotated in relation to the predetermined number of windings. A winding method in which a conducting wire extending from the beginning of the winding to a side opposite to the winding side is wound around the bobbin. 2. A bobbin comprising a bobbin, a flyer for winding a conducting wire around the bobbin, and means for extending a conducting wire led out from the flyer through the bobbin, the bobbin being interlocked with the rotation of the flyer. A winding device characterized by rotating.