JPS5961904A - Divided wound coil - Google Patents

Abstract

PURPOSE:To realize automatic manufacture of a divided wound coil by a method wherein an insulation reinforcing plate which has coupling parts with a bobbin is provided between a lead wire part and a winding and the insulation reinforcement of the lead wire part of the divided wound coil is obtained with good processability. CONSTITUTION:To one side of a cylinder 5 of a bobbin 2 a pair of pits 6 are provided close to a flange 1 and an insulation reinforcing plate 9 which is made of insulating material and the height of which is the same as the width of the flange 1 and which has a pair of bumps 7, 7, which can be coupled with the pits 6, 6, and a notch 8, positioned in the middle of the bumps 7, 7, at its bottom is provided closely to the flange 1. The lead wire part is formed along the flange 1 at the beginning of winding and the notch 8 of the insulation reinforcing plate 9 is set astride over the lead wire part and the insulation reinforcing plate 9 is fixed to the bobbin 2 by coupling its pumps 7, 7 with the pits 6, 6 and the winding in that ditch is started.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a split winding coil.

[Technical background of the invention and its problems]

The split-turn coil is constructed as described below.

ing. 1- That is, as shown in FIG. It is said that

The winding of the insulated wire 4 around the valley groove 3 is carried out by lowering the insulated wire to the bottom of the groove along the brim on one side of the groove and winding it up from there.

With the above structure, the part of the insulated wire that descends along the brim, ie, the outlet of the winding, comes into contact with the winding with a potential difference, resulting in a problem of insulation between the wires. So (1
), conventional countermeasures have been taken such as reinforcing the insulation at the sunrise section with insulation tubes or tape, or increasing or decreasing the number of divisions to reduce the potential difference between the windings at the sunrise section. I am Tora IT.

However, the former method is troublesome to work on, and the latter method is undesirable because it lowers the floor space factor.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and it is possible to strengthen the insulation between the windings in the divided windings without causing a significant decrease in workability or a decrease in the space factor. The whole purpose is to obtain.

[Summary of the invention]

In the present invention, the above object is achieved by completely interposing an insulating sheet between the exposed portion and the winding.

[Embodiments of the invention]

An embodiment of the present invention is shown in FIG. 2, in which the same parts as in FIG. 1 are given the same reference numerals. c/) In this embodiment, one side of the pobbin 20 cylindrical body 5 [1d brim IV? -Close to 1
A recessed part 6 is provided, and a boxwood insulation 4/I'!
2V) Ih, whose height is equal to the brim 1sIll L-<
, at the bottom l) i+ fit2 four people j'1lS6 ,6
VC-engaging actual parts 7, 7 and the notch 8 located in the middle of the two are placed in close proximity to each other.
I'm at tl.

When actually manufacturing a split winding coil case, the opening 911 case should be formed with 90 protrusions along 1 and 1'1 of the opening.
- Tighten the notch 8f-1 of the insulation reinforcing plate 9 at the eye wound, engage the protrusion 7 of the insulation reinforcing plate 9 with the recessed part 6, attach it to the bobbin, and start winding the bamboo 1- Ru.

In step (1), reinforcing the insulation is done as described above.

Tasks 1'l, , 2< can be automated if desired. That's naive. There is no way to increase the number of divisions, which will inevitably lead to a decrease in the floor space factor.

Figure 3 shows another example of the insulation reinforcing plate. This insulation reinforcing plate 0 has a U-shaped cross section (1) J that engages with the cylinder 5 of the bobbin 2.
It has a formed plate fl q and an upright plate 91 which stands upright from the bottom plate 9a t'rM. The electric wire carp 1 is attached to the upright plate 91].
It is provided with 10 general-purpose through holes. To this insulation reinforcing plate 9.

At the start of winding, insert only the front wire into the wire and hold it in place, and then release the hold for one wire each time winding in the groove is completed. /n
By feeding it into the groove, it is possible to load 1&(τ) onto the bobbin.

〔Effect of the invention〕

As is clear from the above, according to the present invention, nine insulation reinforcing plates can be formed at the openings of the split-wound coil with good workability, and if desired, the production of the split-wound coil can be automated.

[Brief explanation of the drawing]

FIG. 1 is a partial cutaway view of a conventional split-wound coil. Fig. 2 is a vertical sectional view of the main part of an embodiment of the present invention, Fig. 13 is a cross-sectional view thereof, and Fig. 3 is a main part of a modified example (D perspective view). 1. Attachment, 2... Bobbin, 3...groove,
4 Insulated wire. 5. Cylindrical body, 6. Recessed portion, 7. Protrusion, 8. Notch. 9... Insulation reinforcing plate application agent Patent attorney Gobe Kikuchi

Claims (1)

[Claims] A division characterized in that an insulating reinforcing plate having a retaining part with the bobbin is interposed between the rising part formed along the brim of the coil bobbin and the winding wound in the groove. winding coil.