Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1975-10-21
1977-07-12
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, 310261, H02K 1500
Patent
active
040356779
ABSTRACT:
In a rotor of a micro motor, a magnet is indirectly attached to a rotor shaft by means of a pair of bushes without using any adhesive material. The pair of bushes comprises upper and lower bushes which are respectively mounted by means of an interference fit around the rotor shaft. Each bush comprises a cylindrical portion in the center of which a hole is formed, and a flange portion having around its periphery an annular notched portion. The notched portion of the upper bush is formed on a lower surface of the flange portion adjacent to the outer periphery of the cylindrical portion while the annular notched portion of the lower bush is formed on an upper surface of the flange portion adjacent to the outer periphery of the cylindrical portion, and due to the notched portions, each flange portion is provided with a certain degree of resiliency. The magnet is loosely fitted over the outer periphery of the cylindrical portions of the respective bushes and disposed between the flange portions thereof so that it is clamped between the flange portions of the bushed by means of the resiliency of the flange portions and thereby fixed between both bushes.
REFERENCES:
patent: 2190956 (1940-02-01), Tognola
Aoki Katsuji
Kusayama Takaji
Adams Bruce L.
Burns Robert E.
Duggan Donovan F.
Kabushiki Kaisha Daini Seikosha
Lobato Emmanuel J.
LandOfFree
Rotor of a micro 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 Rotor of a micro motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor of a micro motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-489884