Electronically commutated motor

Details Electronically commutated motor Electronically commutated motor

1999-03-19

2000-08-01

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310190, 310209, 310223, 310172, 310161, 310157, 310 67R, 310 68R, 310 68B, 310DIG3, 31851431, 31851432, 31851433, 327509, 327510, 360 997, 360 9904, H02K 112

Patent

active

060971290

ABSTRACT:
An electronically commutated external rotor motor has an external rotor having a cup-shaped housing and a radially magnetized permanent magnet connected in the cup-shaped housing. An interior stator is positioned in the cup-shaped housing. The interior stator has a laminated core having grooves. Windings are provided within the grooves. The windings have first end turns proximal to a bottom of the cup-shaped housing and second end turns positioned distal to the bottom. The first and second end turns electrically connect the windings to one another. The permanent magnet has an end face remote from the bottom of the cup-shaped housing. At least one galvano-magnetic rotor position sensor is arranged opposite the end face of the permanent magnet so as to be located within a magnetic leakage of the permanent magnet and within a magnetic leakage of the interior stator. The at least one rotor position sensor is designed to control current within at least a portion of the windings. A magnetic leakage flux concentrator is arranged at the interior stator at the second end turns at a side of the second end turns facing away from the laminated core and positioned at least within an angular area of the interior stator in which the at least one rotor position sensor is located.

REFERENCES:
patent: 3411027 (1968-11-01), Rosenberg
patent: 3805134 (1974-04-01), Osamu et al.
patent: 4529900 (1985-07-01), Uzuka
patent: 4638197 (1987-01-01), Kalagidis
patent: 4934041 (1990-06-01), Hoover et al.
patent: 5623382 (1997-04-01), Moritan et al.
patent: 5663604 (1997-09-01), Takahashi
patent: 5912516 (1999-06-01), Atkinson et al.
patent: 5952760 (1999-09-01), Miyazawa et al.

Affiliated with

Also associated with

Rating

Electronically commutated motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronically commutated motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically commutated motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-666990