Multiphase electric machine with prefabricated co-axial slot bar

Details Multiphase electric machine with prefabricated co-axial slot bar Multiphase electric machine with prefabricated co-axial slot bar

1995-04-06

1998-06-30

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310179, H02K 304

Patent

active

057739056

ABSTRACT:
Known electric machines having co-axial slot bars linked by added connecting conductors have a high number of junctures with small contact surfaces, so that their production costs and susceptibility to interference is increased. Connecting conductors (44-46) prefabricated as moldings without bending radii abut each other separated only by thin insulating layers, and their total surface area is used for current conduction by varying their rectangular conducting cross section. The conductor lanes (39, 40) run either in meander-shaped layers or figure-eight loops. The proportion of insulating material in the connector heads and the number of different connecting conductor designs (41-46) can be minimized by divided bars and the number of junctures can be reduced by half by prefabricating units (41, 42, 43) in a single piece. Large contact surfaces whose conical design further facilitates the mounting process results from the axial increase in the cross section of the conductor at the ends of the connecting conductors. By arranging the enlarged cross sections (69) of the conductor lanes from adjacent grooves axially behind one another, all junctures are located in the outer halves of the connector heads and are accessible anytime for purpose of measurement and post-production adjustment.

REFERENCES:
patent: 3193714 (1965-07-01), Hoven
patent: 3612925 (1971-10-01), Swanke
patent: 4115915 (1978-09-01), Godfrey
patent: 4398112 (1983-08-01), Van Gils
patent: 5331244 (1994-07-01), Rabe
patent: 5422526 (1995-06-01), Kawabata et al.
patent: 5616977 (1997-04-01), Hill

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