Three-phase electric machine with interlaced conductor layers

Details Three-phase electric machine with interlaced conductor layers Three-phase electric machine with interlaced conductor layers

1996-10-03

1999-08-24

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310180, 310201, 310207, H02K 300, H02K 304

Patent

active

059428309

ABSTRACT:
In prior art three-phase electric machines with a layered winding, the conductor elements either make non-optimal use of the space in the groove or the conductors for each phase are in the form of large elements designed to be fitted into each other and whose manufacture is complicated and costly. The invention calls for the conductor lanes (5-7) for each phase in the three-phase conductor layer (11) to be identical in construction and for the construction to be repeated every four pole pitches. While the conductor lanes (5-7) occupy the full height of the layer within the magnetic field, two conductor lanes (5-7) stacked in the groove share the space at the winding ends (19). At the groove exit, the conductor cross-section increases and only later, at the winding end (19) is bisected from only one side at each passage through the winding end. In order to alternate the halves of the layer, contact surfaces are available which are large in comparison to the conductor cross-section and the two winding ends (19) are uniformly utilized due to the interlacing of the lanes. The production of three-phase conductor layers by alternating application of conducting and insulating layers is particularly suitable for small electromagnetic machines, resulting in uniform space utilization and hence high effectiveness and a high power density at low cost, and requiring only a few operations.

REFERENCES:
patent: 588279 (1897-08-01), Lamme
patent: 2502068 (1950-03-01), Anderson
patent: 2993135 (1961-07-01), Henry-Baudot
patent: 4645961 (1987-02-01), Malsky
patent: 5616977 (1997-04-01), Hill
A-93 03534 (Hill Wolfgang) Feb. 1993 PCT/DE92/00617.
A-86 03351 (Fanuc Ltd) Jun. 1986 PCT/JP85/00662.

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