JPS603533Y2 - coil bobbin - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a coil bobbin having multiple windings.

Conventional bobbins of this type have a winding layer extending between both side walls, and each layer is simply wrapped with insulating paper, so each layer has a dielectric strength voltage on both sides. In addition, even a slight deviation in the winding of the insulating paper or a defective winding state causes contact interference between the layers, resulting in the production of defective products.

The present invention reliably and safely eliminates the above-mentioned drawbacks of conventional products through a simple processing configuration, reliably increases the dielectric strength between each winding layer, and also separates both ends of the insulating paper wrapping into partition walls. The purpose is to provide a product with absolute safety by eliminating defective winding and eliminating contact interference at the ends of the winding layer. An example of implementing the present invention will be described below with reference to the drawings.

Both side walls 2 of the bobbin main body 1 made of resin or other suitable insulating material
, 2', at intervals of 5, 5 from both side walls 2, 2'.
', and partition walls 3, 3' of a required number and width corresponding to the number of winding layers and their layer heights are arranged at intervals around the core cylinder part 4, and the interval is It is desirable that the widths of 5 and 5' be suitable for folding and inserting the side edges of the insulating paper C.

Further, as shown on the other side of the partition walls 3, 3', walls of different heights are provided in a required number of rows at equal intervals depending on the number of winding layers.

Since the present invention is constructed as described above, regarding the winding form, one stage partition wall 3 related to the first and second winding layers ab is used.
, 3', the secondary winding layer a is first transferred from the core cylinder part 4 between the partition walls 3, 3'.
After winding the wire according to the height of
Wrap the insulating paper C a little wider than 2'.

Therefore, the partition walls 3, 3' are separated from the side walls 2, 2' by the insulating paper C.
As a result, the wide end of the insulating paper C is folded and inserted into the space 5, 5' to be wound. .

In addition, when installing several rows of walls of different height according to the number of winding layers shown in FIG. 5, the side edges of each insulating paper C are inserted into the respective spacing parts.

Then, the wrapped state of the insulating paper C, which is intended to serve as an insulating partition for the winding layer whose both ends are folded into the gaps 5 and 5', is defective because the ends do not shift. In addition, the winding of the secondary winding layer a is simplified since there is no possibility of winding, and the winding of the above-mentioned insulating paper C covers the whole of the secondary winding layer a with the partition wall 3, 3', so together with the presence of the partition walls 3 and 3', a high dielectric strength can be ensured, and contact interference at both ends of the winding layer is completely eliminated. As a result, safety is absolutely ensured, and the manufacturing of multi-winding coils can be mass-produced easily and safely, which is extremely convenient, and the work of wrapping insulating paper C around the winding layer is It has advantages such as being simple.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; Fig. 1 is a front view, Fig. 2 is a right side view, Fig. 3 is an enlarged sectional view taken along line AB in Fig. 2, and Fig. 4 is a folded end of insulating paper. FIG. 5 is an enlarged sectional view of the partition wall showing winding, and FIG. 5 is an enlarged sectional view of the partition wall illustrating multiple partition walls on the other side. 1...bobbin main body, 2, 2'...both side walls ,3,3'
...Partition wall, 5,5'...interval.

Claims (1)

[Scope of utility model registration request] Both side walls 2 of the bobbin main body 1 made of resin or other suitable insulating material
′, partition walls 3, having the required number and width according to the number of winding layers and the number of layers, are placed around the core cylinder portion 4 at intervals 5, 5′ from the both side walls 2, 2′. A coil bobbin formed by forming a 3' spaced arrangement.