Brushless, electronic commuted motor
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United States of America Patent
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-
Oct 29, 2002
Grant Date -
N/A
app pub date -
Aug 7, 2000
filing date -
Dec 20, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a brushless, electronically commuted motor, more particularly one used as drive motor for a ventilator drive mechanism in an automobile, comprising a permanent magnetic outer rotor (5), in which a stator (7) with three winding wires staggered at 120.degree. el is mounted, in addition to several winding coils for each winding wire. The pitch of the coil of the winding coils (15-37) is s smaller than the pitch of the pole and 0.5 coils are wound per pole and wire (9, 11, 13). A flat, compact, light-weight, silent and efficient EC motor (1) is obtained due to the fact that each winding wire consists of several parallel-connected windings, the outer rotor (5) has at least p=3 pole pairs and a control plate with conductor rails is provided to connect the individual winding coils.
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