Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1994-08-18
1997-01-28
Dougherty, Thomas M.
Electrical generator or motor structure
Dynamoelectric
Rotary
310201, H02K 348
Patent
active
055980490
ABSTRACT:
An arrangement for sealing the slots, which are filled with conductor bars or coils, in the laminated stator core of an electrical machine by use of slot sealing elements includes an upper prismatic body, on whose underneath a surface runs in an inclined manner, and a lower prismatic body. The upper surface, facing the upper body, runs inclined in the opposite direction to the gradient of the lower surface of the upper body, and actual wedging is effected by relative displacement of the two prismatic bodies with respect to one another.
In order to be able to utilize the elasticity of the upper body in the transverse direction in an optimum manner, the force is introduced from the conductor bar or coil to the upper prismatic body, essentially only in its central section, over its entire length. As a consequence, relatively large spring movements in the radial direction are available which, for their part, can compensate better for a seating phenomena in the winding structure. In this way, servicing intervals are extended and the availability of the machine is increased.
REFERENCES:
patent: 3949255 (1976-04-01), Brown et al.
patent: 4547690 (1985-10-01), Bath et al.
patent: 4607183 (1986-08-01), Rieber et al.
patent: 4633574 (1987-01-01), Bath et al.
patent: 5430340 (1995-07-01), Shih et al.
ABB Management AG
Dougherty Thomas M.
Link Jonathan
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