JPS59126610A - Electrical coiled component parts with separated winding - Google Patents

Abstract

PURPOSE:To reduce a potential difference and distributed capacity and improve dielectric strength and efficiency by composing a winding of a plurality of winding domains which are wound separately in such a manner that they are inclined against the direction of a shaft axis of a core or a bobbin. CONSTITUTION:The first layer winding is applied on a surface of a winding portion 4 and its winding pitch is advanced to the direction leaving a flange 2 as far as the boundary of the section (a). Then the winding of the 2nd layer is started. The 2nd layer coil is formed by advancing the winding pitch to the direction approaching the flange 2, while care is taken not to let the 1st winding of the 2nd layer go beyond the boundary of the section (a). Then, the coils of the 3rd layer, the 4th layer and the 5th layer are formed in he same way. The winding of the 5th layer coil is transferred from the position (al) to the position (bl1) of the 1st winding of the 1st layer of the section (b). The coil is formed in the section (b) in the same way as in the section (a). Henceforward, in the sections (c), (d), said method is also applicable.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an electrical winding component that improves control voltage and efficiency without enlarging the form.

Electrical winding parts include choke coils and transformers, and the present invention improves the withstand voltage and efficiency of such electric winding parts by applying special winding.

Most of the electrical winding parts that have been widely known in the past are wound as shown in FIG.

That is, FIG. 1 shows an example of a choke coil, which consists of an iron core 1 having a flange 2.3 and a winding part 4, and a multilayer coil formed by winding the winding part 4. 5, and a terminal pin 6 implanted on the outside of the flange 2.3.
．． 7 and is more refined.

When forming the coil 5, first, the winding pitch is advanced from the flange part 2 toward the flange part 3, and the first layer is directly wound on the surface of the winding part 4 over the entire area between the flange parts. Next, the winding pitch is increased in the opposite direction to the above, and the second layer is formed around the first layer by winding from the flange 3 to the flange 2, and then from the flange 2 to the flange 3. A third layer is formed around the second layer by increasing the winding pitch toward . Similarly, the 4th layer, the 5th layer...
The coil 5 is formed by winding.

Now, in the choke coil described above, the induced electric power acts strongly on the first layer coil closest to the winding part 4, and on the second layer coil.
The effect of this induced electromotive force gradually decreases as the distance from the winding section 4 increases, such as the third layer, . . . . This causes a potential difference and distributed capacitance between the windings, especially between the layers.

As is well known, the above-mentioned distributed capacitance acts not only to reduce the Q of the coil, but also to increase the line-to-line potential difference, so if the voltage applied to the choke coil is increased, the above-mentioned potential difference increases, causing corona discharge and dielectric breakdown. induce.

In the choke coil described above, the winding string is broken directly on the iron core, but similar problems occur with coils with a bobbin interposed therebetween, and with other winding parts such as transformers.

The purpose of the present invention is to propose an electric winding component that has improved withstand voltage and efficiency by reducing the potential difference and distributed capacitance as much as possible, and for this purpose,
The wire area is divided into a plurality of sections, and each section has a coil wound thereon, and the coil is wound so that the boundary of the coil in each section is inclined with respect to the fine direction of the iron core or bobbin. A section-wound electrical winding component is proposed.

In electrical winding parts configured in this way, not only the line potential difference and distributed capacitance are reduced, but also the boundaries between the coils wound in each section are inclined, so there is no flange between the coils. Even if the winding is not carried out, the wire can be wound reliably, so that the shape of the winding component does not become large.

Examples of the present invention will be described below.

FIG. 2 shows an example in which the present invention is implemented as a choke coil. In this figure, the iron core 1 is the same as that of the conventional example described above, but the coil 8 is segmentally wound according to the illustrated segments α to d.

That is, in this embodiment, the winding portion 4 is divided into four sections α to d, and the coil 8 is formed by winding each section.

When there is a gap in winding, first multi-layer winding is carried out for section α, then multi-layer winding is carried out for section c, and then similarly for section c.
Multilayer winding is performed in the order of Xd.

3 to 5 are partially enlarged views showing the winding process of the above-mentioned segmental winding.

First, referring to FIG. 3 which shows the winding of section α, the first layer wound on the surface of the winding section 4 advances the winding pitch in the direction away from the collar section 2 until it reaches the boundary of section α. winding,
Then transfer the winding to the second layer. At this time, the winding pitch is advanced in the direction of the flange 2 so that the first winding of the second layer does not protrude from the boundary of section α, and the second layer coil wound around the first layer is Form. Next, the winding is transferred to the third layer and wound within the range α, and the fourth and fifth layer coils are formed in the same manner.

In this embodiment, the fifth layer coil of the section α is at the position αl in the figure, so the winding is moved from this α1 position to the first layer first winding position b11 of the section.

As shown in Fig. 4, the winding of the section is made by advancing the winding pitch to the left from the winding position b11 until it reaches the boundary of the section, forming the first layer coil, and then winding the winding. Transfer to the second layer, advance the winding pitch rightward, and form a 2N coil within the range of section. Next, move the winding to the third layer and wind the winding by advancing the winding pitch to the left, or move the winding to the fourth layer in the same manner.
, winding for the fifth layer.

The final winding position of the section is the final winding position b12 of the fifth layer, so the winding at this position b12 is placed in the first layer of section C.
Move the wire to the winding position cl□ and wind the wire as shown in FIG. Class C is the same as the winding method for the above-mentioned class, and the same applies to class d.

Note that the arrows shown in FIGS. 3 to 5 indicate the direction of movement of the winding pitch.

The coil 8 is formed by winding the wires in the sections α to d as described above, and the winding start end and winding end of the coil 8 are connected to each terminal pin 6.
．． Fixed at 7.

Now, when the coil 8 is wound as described above, the fifth layer of section α and the first layer of section C, the fifth layer of section α and the first layer of section C, Since the 5th layer and the 1st layer of section d are each directly connected, the potential difference and distributed capacitance not only between the 1st layer and the 5N coil but also between each layer, that is, the potential difference and distributed capacitance between the edges is This is extremely low compared to conventional products.

In addition, since the boundary between the coil that is wound in a section and the coil that will be wired next is sloped, by placing the coil to be drawn and wound along this slope, it is possible to ensure that multiple windings are not bent. Can be prevented.

Next, FIG. 6 shows an example in which the present invention is implemented as a transformer, and this transformer is used as a Σ trigger transformer for a flash discharge light emitting device for photography. FIG. 7 is a side view of the transformer.

In these drawings, 1 is the same core as shown in FIG. 1, except that the collar 2 has two terminal pins 6α,
6b is planted. Further, 9 is a primary coil provided in section a, and 10 is a secondary coil provided in sections c and d. That is, in section α, the primary coil 9 is wound and sectioned using the winding method shown in FIG. 3, and in cXd, the method shown in FIGS.
The secondary coil 10 is wound in a manner similar to the winding method shown in the figure.

Figure 8 shows the primary coil 9 and secondary coil lO of the transformer.
This is an embodiment in which an electrically insulating member 11 is interposed between the two.

The electrical insulation member 11 serves to increase the insulation strength of ]bj between the primary coil 9 and the secondary coil 10.

Fig. 9 and Fig. 1'o show another embodiment of the trigger transformer described above, and in this embodiment, the winding portion of the flanged bobbin 12 is divided into a plurality of sections α to d, and the primary A coil 9 and a secondary coil 10 are wound.

Further, the windings of the secondary coil 9 and the secondary coil 10 are the same as those of the transformer shown in FIG. Hiko, in the above transformer, the rod-shaped iron core 13 is inserted into the bobbin 12, and the terminal pins 6α, 6b, and 7 are implanted in the bobbin flange.

In this embodiment as well, an electrically insulating member as shown in FIG. 8 may be provided between the primary coil 9 and the secondary coil 1O.

Even when the present invention is implemented as the trigger transformer described above, the line potential difference and distributed capacitance can be sufficiently reduced.
The withstand voltage of the transformer can be increased, and since the distributed capacitance is small, the Q of the coil is high and the trans efficiency is increased.

Moreover, since the slope is provided between the coils in each section, each coil is partially overlapped. Therefore, between the coils, the flange etc. become the princess, so the transformer form does not expand.

As described above, in the electrical winding component according to the present invention, the potential difference and distributed capacitance between wires can be reduced without enlarging the form, and the withstand voltage and efficiency of the winding component can be increased. In particular, because the distributed capacitance is reduced, it is highly effective for choke coils, transformers, and other electrical winding components that are incorporated into high-frequency circuits.

It should be noted that the present invention can be applied to winding components such as those in which the wire is wound face-to-face around an iron core and those in which the wire is wound around a bobbin, and the number of sections to be wound can be increased or decreased depending on necessity. However, when winding wires in these sections, the method is not limited to the method of reciprocating the winding pitch as shown in the above embodiment, but it is also possible to
As long as the winding can be inclined between 43 and 43, the winding method is arbitrary. Furthermore, when implemented as a transformer, each section may be provided with tertiary or higher coils in addition to the primary and secondary coils.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the choke coil showing a conventional choke coil/L winding method, FIGS. 2 to 10 show embodiments of the present invention, and FIG. 2 is a sectional view of the choke coil,
Figures 3 to 5 are partially enlarged views showing the winding process of the η-yoke coil fi, Figure 6 is a sectional view of the trigger transformer, Figure 7 is a side view of the trigger transformer, and Figure 8 is a cross-sectional view of a trigger transformer with an electrical insulating member provided between the primary coil/L and the secondary coil, Figure 9 is a cross-sectional view of a trigger transformer wound on a bobbin, and Figure 10 is shown in Figure 9. FIG. 3 is a side view of the trigger transformer. 1... Iron core 4... Winding part 8... Koinoshi 9
...-Secondary coil 10...Secondary coil 11.
Electrical insulation member 12... bobbin 13.・Iron core α
～d...Classified patent applicant Hiroharu Koike, patent attorney representing Kijima Musen Co., Ltd.) - 1゛-1 1st @ Figure 2 Figure 5/'' Figure 6 @ Figure 7

Claims (3)

[Claims] (1) The winding area of the core or bobbin is divided into multiple sections and each section has a coil/L wound thereon, and the boundary of the coil in each section is relative to the axial direction of the core or bobbin. A section-wound electrical winding component that is wound at an angle. (2) The electrical winding component as set forth in claim (1), wherein each of the coil sections is formed of a single winding wire to form a choke coil. (3) A transformer is constructed by providing a primary coil in at least one of the above-mentioned sections and a secondary coil or a coil of secondary or higher order in the other sections.
Electrical winding parts described in item 1).