Retaining system for a rotor of a dynamoelectric machine

A technology of generator rotor and holding system, applied in electromechanical devices, electrical components, electric components, etc., to achieve the effect of simple structure, high cost, and large diameter
CN1604427AInactive Publication Date: 2005-04-06GENERAL ELECTRIC CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GENERAL ELECTRIC CO
Publication Date
2005-04-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided is a holding system (116) of the end of field winding of the rotor (10) of a dynamoelectric machine. The rotor has an outer circumferential surface (20), a radial end face (26), a slot (14) made in the outer circumferential surface (20) to extend axially, and a field winding (17) placed in the slot. The field winding projects radially from the end face (26) of the rotor and being connected with the end (18) of field winding on the outside of the slot (14). The end of winding is surrounded by a holding system (116) comprising a shield member (130) surrounding the end of winding, and a holder member (140) surrounding the shield member (130). The shield member (130) has a flange (132) received in the slot together with the field winding (17). A securing function (128) engages with the flange to block axial movement of the holding system.
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Description

technical field

[0001] The present invention relates generally to rotors for electric generators, such as generators for electricity production. More particularly, the present invention relates to a retaining ring supporting field end windings of such a rotor, wherein the retaining ring has a combination that provides a high strength, low density support structure for the end field windings structure. Background technique

[0002] Large turbine-driven generators used in electricity production contain a rotor that acts as a source of flux for magnetic flux generated by wire-wound coils supported on the rotor. The rotor rotates within a stator containing a large number of wires which induces an alternating current as the rotor rotates within the stator, creating a rotating magnetic field in the narrow air gap between the stator and rotor.

[0003] A rotor 10 for a turbine driven generator is shown in figure 1 and 2 middle. The rotor 10 is generally a large cylindrical bod...

Claims

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