Electrical connection between and a method of installation of a main terminal and a bore copper of a dynamoelectric machine
First Claim
1. In a dynamoelectric machine having a shaft, a bore connector extending in an axial direction along a portion of said shaft and having a radially outwardly opening aperture, having an annular groove a main terminal extending within a radial bore in said shaft and having radial inner and outer ends, said radial outer end including a flexible electrical connection for connection with a field winding of the machine, an annular spring disposed in said aperture groove, said inner radial end of said main terminal being received within said aperture with said spring between said radial inner end and said bore connector affording electrical connection therebetween, and a retainer engaging said shaft and said main terminal maintaining said main terminal in said radial bore and said inner end thereof in electrical contact with said bore connector.
1 Assignment
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Accused Products
Abstract
A longitudinally-extending bore connector has apertures which receive annular spring electrical connectors. To connect end turns to the bore connector, a main terminal having a prefabricated and preassembled gooseneck at its radially outer end is inserted in a radial bore to locate its distal end in the first aperture of the bore connector forming an electrical connection. The gooseneck at the radially outer end of the main terminal comprises preassembled leaves connected to the main terminal prior to assembly in the machine and connected to the end turn upon installation. A nut on the main terminal is threaded down to secure the main terminal to the shaft. A stud is similarly inserted into a second aperture of the connector bore and electrically connected thereto and to an exciter/slip ring assembly.
30 Citations
11 Claims
- 1. In a dynamoelectric machine having a shaft, a bore connector extending in an axial direction along a portion of said shaft and having a radially outwardly opening aperture, having an annular groove a main terminal extending within a radial bore in said shaft and having radial inner and outer ends, said radial outer end including a flexible electrical connection for connection with a field winding of the machine, an annular spring disposed in said aperture groove, said inner radial end of said main terminal being received within said aperture with said spring between said radial inner end and said bore connector affording electrical connection therebetween, and a retainer engaging said shaft and said main terminal maintaining said main terminal in said radial bore and said inner end thereof in electrical contact with said bore connector.
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6. In a dynamoelectric machine having a shaft and a radial bore, a bore connector extending generally in an axial direction along a portion of said shaft and having a radially outwardly opening aperture and a main terminal, a method of connecting the bore connector and a field winding comprising the steps of:
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prior to electrically connecting the bore connector and field winding, brazing a plurality of leaves to one another and to one end of the main terminal;
inserting said main terminal into said radial bore and an opposite end of said main terminal into said aperture;
securing said main terminal in said radial bore; and
securing said brazed leaves to the field winding. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification