Method of assembling an electric motor
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United States of America Patent
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-
Dec 2, 2003
Issued Date -
N/A
app pub date -
Jul 20, 2001
filing date -
Oct 5, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for assembling an electric motor (10) having a stator (34) and a rotor (32). It is endeavored to keep the air gap (38) as narrow as possible, in order to achieve good efficiency of the motor (10). However, component tolerances and assembly errors require generous dimensioning in order to avoid possible contact between the stator (34) and the rotor (32). To improve the accuracy of assembly, is proposed, during the insertion into one another of the rotor (32) and the stator (34), a centering aid (40, 42) is introduced into the air gap (38) at at least three points, the rotor (32) and the stator (34) are subsequently fixed in relation to one another and finally the centering aid (40, 42) is pulled out through openings (48) in the motor housing (20, 30).
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