JPH0318724B2 - - Google Patents

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a plurality of coils, such as a speaker voice coil, in which two voice coils for different bands are wound in alignment on one bobbin. The present invention relates to a method of winding an aligned coil in which the coil is wound in an aligned manner.

[Technical background of the invention and its problems]

The conventional winding method for this type of alignment coil is the eighth method.
This was done using the method shown in Figures 9 and 9.

For example, as shown in FIG. 9, the three windings 1, 2, and 3 are arranged so that the adjacent windings 1, 2, 2, and 3 are
The insulating surfaces are joined to form a flat plate.

As shown in FIG. 8, a bobbin 7 is fitted into a winding core ring 6 attached to a rotating shaft 5 of a winding machine 4, and the three flat windings 1, 2, and 3 are tied together at one point. It is wrapped around it.

Therefore, it is necessary to join the insulating surfaces of the three windings to be wound to form a flat plate, which not only increases costs, but also
Furthermore, since the bonding surface must be a fusion film for bonding, the materials for the insulating material are limited.

Furthermore, when winding wires in two or more layers, since winding wires 1, 2, and 3 are flat, it becomes difficult to fold them back, and therefore, there are disadvantages such as difficulty in using them for winding wires in two or more layers. Ta.

[Purpose of the invention]

The present invention eliminates the above-mentioned drawbacks of the conventional method of winding an aligned coil, and shifts the winding start position of a plurality of windings with respect to the winding frame, thereby eliminating the need to join a plurality of windings into a flat plate shape in advance. It is an object of the present invention to provide a method for winding an aligned coil that can be wound around an aligned coil and that can be easily folded back when winding two or more layers.

[Embodiments of the Invention] Examples of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows the winding method of the present invention.
1 is a winding machine, and a core ring 1 is attached to its rotating shaft 12.
3 is attached, and a bobbin (winding frame) 14 is wound around this core ring 13.

On the outer circumference of the core ring 13, there are, for example, three
Guide 16a for book windings 15a, 15b, 15c,
16b, 16c are installed, and by rotating the rotating shaft 12, the windings 15a, 15 are placed on the bobbin 14.
b and 15c are wound.

However, each winding 15a, 15b, 15c
Since the positions of the guides 16a, 16b, and 16c are different, the starting position of winding onto the bobbin 14 is different.

In this way, since the starting positions of the windings are different, the winding 15b that has already been wound is pushed by the winding 15c that is to be wound next, and is pressed against the already wound winding 15a so that it is aligned. become.

Such alignment is similarly performed in the second stage, and the coils can be wound around the bobbin 14 as in the aligned coil shown in FIG.

In the above embodiment, three windings were used, but by increasing the number of guides, more windings can be wound.

Furthermore, as shown in FIG. 3, even if the guide 16 that guides each winding and the winding frame 17 on which the winding 15 is wound are rotated around the bobbin 14 and the bobbin 14 is kept stationary when winding is performed, An alignment coil can be wound similarly to the example.

Furthermore, in the previous embodiment, three round wires were wound in two layers, but as shown in FIGS. 4 and 5, the number of turns of one or more wires is larger than that of each winding. The windings can be changed without any problem, such as increasing the diameter of the winding, or making one or more of the windings smaller in diameter as shown in FIG. 6, or using square wire as shown in FIG.

〔Effect of the invention〕

According to the present invention, by shifting the winding start positions of the plurality of windings as described above, it is possible to connect the plurality of windings in advance on the insulating surface as in the conventional case and form a flat plate. It can be wound into aligned coils without having to do so.

Therefore, the wound coil is a plurality of coils having the same number of turns within the same winding width.

Since there is no need to bond the insulating surfaces in advance as in the conventional case, the cost increase due to this is eliminated, the cost can be reduced, and there is no restriction on the insulating material.

Furthermore, when winding in two or more layers, each winding can be folded back at a different position, so winding in two or more layers can be easily performed without any problem.

Furthermore, by narrowing the interval between the guides that guide each winding, it is possible to increase the number of guides, which has many advantages, such as increasing the number of windings.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of one embodiment of the present invention, Fig. 2 is a sectional view of a wound coil, Fig. 3 is a schematic diagram of another embodiment, and Figs. A sectional view of a coil with different wires, FIG. 8 is a schematic diagram of a conventional winding method, and FIG. 9 is a plan view of the winding. 13... Core ring, 14... Bobbin, 15
a, 15b, 15c... winding, 16a, 16b,
16c...Information.

Claims (1)

[Claims] 1 A winding frame on which at least two or more windings are wound,
The positions where the winding is wound are staggered in the circumferential direction, and a guide is provided in the tangential direction extending from that position to guide the winding towards the winding frame, and either the winding frame or the guide A method of winding an aligned coil, characterized in that two or more windings are simultaneously wound by rotating one of the windings about the center of the winding diameter.