Stator for an electric machine excited by permanent magnets

Details Stator for an electric machine excited by permanent magnets Stator for an electric machine excited by permanent magnets

1982-01-27

1983-10-25

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310255, H02K 2126

Patent

active

044121458

ABSTRACT:
Arcuate permanent magnets are inserted into the bore hole of a stator intended for use in an electric machine which is excited by permanent magnets. Spring elements, inserted into recesses in the wall of the bore between the magnets, have spring arms which are connected to each other via a back part and which rest against axially extending lateral edges of the permanent magnets. To insure retention of the permanent magnets against high mechanical shock stresses without connecting the spring elements to the stator, the spring elements are provided with extensions, formed on their back parts, which frictionally engage undercuts in the recesses. The spring arms themselves extend around the lateral edges of the permanent magnets in a form-locking manner.

REFERENCES:
patent: 3090877 (1963-05-01), Baumhart
patent: 3450907 (1969-06-01), Blume
patent: 3631277 (1971-12-01), Ferdig et al.

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