Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-07-23
1994-08-23
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310261, H02K 7065, H02K 122
Patent
active
053410572
ABSTRACT:
A dc vibrator motor has a generally cylindrically-shaped magnetically conductive case, a ring-shaped permanent field magnet, and an armature rotor including a shaft. The field magnet has at least four and at most eight alternate north and south pole sections arranged at an even angular pitch coaxially with the shaft. The armature rotor has at least three armature poles having an angular interval of 60.degree. between adjacent poles and at most six armature poles having an angular interval of 30.degree. between any pair of adjacent poles and at least six and at most twelve commutator segments arranged at an even angular pitch coaxially with the shaft. A pair of commutator brushes have an angular interval of at least 45.degree. and at most 90.degree. . Since all of the armature poles are situated within an angular range of 180.degree. about the shaft, the center of mass of the rotor is radially off the shaft, thereby causing vibrations.
REFERENCES:
patent: 3584249 (1971-06-01), Murphy
patent: 4812692 (1989-03-01), Arita
patent: 5036239 (1991-07-01), Yamaguchi
patent: 5057731 (1991-10-01), Hancock
patent: 5107155 (1992-04-01), Yamaguchi
patent: 5175459 (1992-12-01), Danial et al.
Koyanagi Naohisa
Nakajima Koichi
Yamaguchi Tadao
Hidaka Kenjiro
LaBalle Clayton E.
Skudy R.
Tokyo Parts Industrial Co., Ltd.
LandOfFree
Vibrator motor for a wireless silent alerting 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 Vibrator motor for a wireless silent alerting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibrator motor for a wireless silent alerting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-505072