Patent · US Active

Electrical motor having rotor support shield

US8624455B2 · kind B2 · utility

1Cited by

6References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Daniel Friedl · Fürstenzell, DE
Oliver Memminger · Passau, DE

Key dates

Filing date	Nov 24, 2009
Grant date	Jan 7, 2014
Priority date	—
Expiry date	Mar 9, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/09
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A bearing change in an electrical motor and in particular a generator having permanent magnetic excitation should be able to be carried out safely. To this end, the invention relates to an electrical motor having a shaft (2) on which a rotor is mounted and a bearing unit (5) by means of which the shaft (2) is rotatably mounted. In addition, the electrical motor has a rotor support shield (1) to which the bearing unit (5) is fastened. Furthermore, the rotor support shield (1) is sized so as to be capable of supporting the shaft (2) when the bearing unit (5) is removed and seals a grease chamber (8) of the bearing unit (5) opposite the shaft (2). With the rotor support shield, a permanent magnet-equipped rotor can in particular be prevented from coming into contact with the stator when the bearing is removed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.