Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-09-02
1999-11-09
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310268, 310266, 310156, H02K 3700
Patent
active
059820586
ABSTRACT:
A two-phase electro-mechanical stepper motor having 1) a high ratio of torque per mass and torque per power draw, to be able to develop required rotating torque, 2) a magnetic circuit that allows developing of a significant holding torque while using a limited amount of electric power, and 3) two disk rotors positioned on either side of the stator with aligned poles. The actuator has a shaft extending into the actuator, and a first and second rotor, each fixedly mounted on the shaft, and each having a permanent magnet mounted thereon in opposing fashion. Additionally, there is a stator, loosely mounted around the shaft and positioned between the opposing permanent magnets, and having at least a first and second pole extending toward the first and second rotors respectively. Furthermore, there is a first and second wire coil wrapped around the first and second pole respectively to allow the formation of a first and second electromagnet respectively by passing electrical current through the first and second wire coil. The invention also has the first and second magnets each having at least a north and south pole magnet region with a transition line located therebetween, wherein the transition lines on the first and second magnet are misaligned as viewed along the shaft. A variation of the invention replaces the misaligned transition lines with misaligning the first and second poles as viewed along the shaft.
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Adams Phillip G.
Bustamante Eleazor Felipe
Hoskin Catherine
Leng David Yan
Roubinchtein Grigori
Bourgeois Mark P.
CTS Corporation
Ghahramani Saeed
Ramirez Nestor
Stackweather Mike
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