Electrical generator or motor structure – Dynamoelectric – Oscillating
Patent
1995-09-22
1997-10-21
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Oscillating
310 37, 310 38, 318114, 318115, 318119, 318135, H02K 3300, H02K 3500
Patent
active
056799888
ABSTRACT:
A rocking motor comprises a coil wound around a hollow coil bobbin. A rotor is rotatably mounted at a position close to an end portion of the coil bobbin. The rotor has a center shaft and a permanent magnet and is magnetized with two poles such that the positions of the poles are located close to the coil and the magnetization angle is greater than 90 degrees but less than 180 degrees. The positions of the poles of the rotor and the coil are adjacent to one another so that a rotary torque can be efficiently obtained by a magnetic force generated by the coil. The rocking motor can generate a high power output with a relatively low power supply and its operational performance is not adversely affected by an external magnetic field.
REFERENCES:
patent: 4088909 (1978-05-01), Matsumura et al.
patent: 4144467 (1979-03-01), Nakajima et al.
patent: 4287457 (1981-09-01), Takemura
patent: 4644211 (1987-02-01), Idogaki et al.
patent: 4795929 (1989-01-01), Elgass et al.
patent: 5334893 (1994-08-01), Qudet et al.
Akimoto Kazuo
Ito Akihiro
Tagami Shigeru
Tanaka Masaki
Tanikawa Miyoshi
Enad Elvin G.
Seiko Precision Inc.
Stephan Steven L.
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