DE559844C - Method for applying and winding a pair of coils on armatures or field magnets of undivided double-T-shaped cross-section - Google Patents

Description

The invention relates to a method for applying and winding Coils on armatures or field magnets of double-T-shaped cross-section, in which the Pole shoes reach back over the coils to achieve a larger field cross-section, the pole pieces of which are therefore undercut for the coils.

Such armatures or field magnets are used in particular in small motors, where the cheapest production is essential. So far you could do this Coils on the double-T-shaped body with undercut pole pieces just because of this apply that one head of this body was made removable. Through this there is a considerable increase in price and a more complicated design that is particularly noticeable disturbing when the iron body is made of stratified Iron sheets, for example dynamo sheets,

This disadvantage is avoided according to the invention and a punching out of the

The sheet metal from one piece for the whole double-T-shaped Cross-section with undercut pole pieces when using coil boxes made possible that initially the two-part coil box of one coil on the core of the armature or Applied field magnets and through the space formed by the ends of the pole pieces is wound through, then the finished coil on the core along laterally is pushed into its final position, so that thereupon the second two-part bobbin case applied to the freed core center and in the same way as the first coil wound and also moved laterally into its final position can.

The coils are expediently in their final positions by a between them attached spacer held.

In the drawing, the invention is illustrated schematically, for example, and although shows:

Fig. Ι the fully wound field magnetic body or armature of an electrical machine,

Fig. 2 and 3 different manufacturing phases,

Fig. 4 one half of a coil case in a diagrammatic representation.

The armature or field magnetic body α has a double-T-shaped cross section. The distance b between the ends of the pole school d is slightly larger than the width c of the coil boxes, so that these, consisting of two parts e and /, can be inserted through the space between the adjacent pole shoes. First of all, this is done with one coil g, which is wound in its central position on the iron body a, as can be seen in FIG.

After completion of the winding, the coil g is brought into its final position and then the second coil h is wound in the middle position on the iron body a, as Fig. 3 shows. After this coil has also been completely wound, it is moved laterally on the iron body into its final position shown in Fig. Ι. The coils are then held and fastened in this position by a spacer i fastened between the coils.

Claims (2)

Patent claims: i. Method for applying and winding a pair of coils on armatures or field magnets of undivided double-T-shaped cross-section with undercut Pole pieces for small electric motors using coil boxes, thereby characterized in that initially the two-part coil box of the a coil applied to the core of the armature or field magnet and formed by the ends of the pole pieces Is wound through the gap, then the finished coil on the core is pushed along laterally into its final position, so that thereupon the second two-part bobbin case applied to the vacated core center and in the same way as the first Coil wound and also moved laterally into its final position can. 2. The method according to claim 1, characterized in that the coils in their final positions held by a spacer attached between them will. 1 sheet of drawings