Inner-rotor commutation device

Details Inner-rotor commutation device Inner-rotor commutation device

H - Electricity

02

K

H02K 29/08 (2006.01)

Patent

CA 2051287

ABSTRACT OF THE DISCLOSURE A brushless DC motor includes a rotor having an iron core affixed to a motor shaft. Permanent magnets are affixed to the core and separated by aluminum inserts which are keyed to the core. An annular groove in one end of the rotor core is dimensioned so that its outer diameter coincides with the inner tips of the aluminum inserts. The inner diameter of the groove and its depth provide only minimal clearance around commutation transistors which occupy the space within the groove. The commutation transistors are affixed and electrically connected to a circuit board which, in turn, is secured to the motor body by attachment to a removable motor end plate. With this structure, the commutation transistors are surrounded on three sides by the rotor and are triggered by its drive magnets. This structure permits the commutation transistor to be triggered by a strong magnetic flux which is more accurately directed through the transistor at its switch plane.

Affiliated with

Also associated with

Rating

Inner-rotor commutation device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inner-rotor commutation device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inner-rotor commutation device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1728593