Abstract A resilient structure for mounting the stator component of a synchronous electrical machine on its baseplate includes a plurality of spring brackets interconnecting respective points of attachment on the periphery of the stator component with the baseplate and which extend in radial planes as related to the stator axis. Each spring bracket includes at least one leaf spring the ends of which are held in spring retainers incorporating ribs disposed in the plane of the spring flexure. The ribs at opposite ends of the spring are rigidly fixed respectively to the stator and baseplate and the one or more leaf springs utilized in each mounting bracket are statically stressed only in tension by the weight of the stator component and are subjected to a dynamic bending stress in response to torsional vibrations occurring in the stator and which are absorbed by the springs which are softer in the peripheral direction than in the radial and axial directions. The spring bracket type of mounting structure is equally applicable to synchronous machines wherein the rotor turns on a horizontal axis as well as to those wherein the rotor turns on a vertical axis.
Inventors
👤 Mihailo Starcevic
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-03 16:22
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
196 words
A support structure for the stator component of a synchronous electrical machine comprising a plurality of spring brackets interconnecting said stator and a base plate, each said spring bracket including one set of parallel spaced stiffening ribs projecting from the stator in the direction towards but terminating short of said base plate in a spring-connecting end and a second set of parallel spaced stiffening ribs projecting from said base plate in the direction towards but terminating short of said stator in a spring-connecting end, and leaf spring means extending in a direction radially of the stator axis and connected respectively at the opposite ends thereof to said spring-connecting ends of said first and second sets of stiffening ribs, said leaf spring means being statically stressed in tension only by the weight of the stator and being subjected to dynamic bending stresses in response to torsional vibrations occurring in the stator during operation of the machine and which are transmitted to said spring means through said stiffening ribs that lie in the plane of flexure of said spring means and also serve to stiffen the spring brackets in the radial and axial directions of said stator component.
Claim 2
Dependent Claim
196 words
A support structure for the stator component of a synchronous electrical machine comprising a plurality of spring brackets interconnecting said stator and a base plate, each said spring bracket including one set of parallel spaced stiffening ribs projecting from the stator in the direction towards but terminating short of said base plate in a spring-connecting end and a second set of parallel spaced stiffening ribs projecting from said base plate in the direction towards but terminating short of said stator in a spring-connecting end, and leaf spring means extending in a direction radially of the stator axis and connected respectively at the opposite ends thereof to said spring-connecting ends of said first and second sets of stiffening ribs, said leaf spring means being statically stressed in tension only by the weight of the stator and being subjected to dynamic bending stresses in response to torsional vibrations occurring in the stator during operation of the machine and which are transmitted to said spring means through said stiffening ribs that lie in the plane of flexure of said spring means and also serve to stiffen the spring brackets in the radial and axial directions of said stator component.
Claim 3
Dependent Claim
61 words
A support structure as defined in claim 1 for the stator component of a synchronous electrical machine which operates with its rotor shaft in a horizontal attitude and which includes two of said spring brackets extending lengthwise of the stator component that engage the lower half of said stator component at opposite sides of a vertical plane through the stator axis.
Claim 4
Dependent Claim
56 words
A support structure as defined in claim 1 for the stator component of a synchronous electrical machine which operates with its rotor shaft in a vertical attitude and which includes at least three of said spring brackets distributed uniformly around the periphery of the lower end face of said stator component by which it is supported.