Slot sealing arrangement
US5598049A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Aug 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.