Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-10-08
1999-05-18
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Rotary
310 51, H02K5/00;5/04;5/24
Patent
active
059053208
ABSTRACT:
A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle. A housing is disclosed for an electric motor of the type having an armature with an armature shaft and magnet means for inducing rotational movement of the armature shaft. The housing includes a housing member dimensioned to minimize noise energy and having a main body section with an internal chamber for at least partially accommodating the armature and the magnet means. The main body section defines an axial length and an internal cross-sectional dimension. The length is less than about 1.25 times the distance of the internal dimension. With this particular dimensional arrangement, the housing, in effect, desirably creates a reactive intensity field to at least partially counteract an active intensity field generated during operation. In a preferred embodiment, the axial length of the housing member ranges from about 0.50 to about 0.80 times the distance of the internal dimension to create the desired reactive field.
REFERENCES:
patent: 3330515 (1967-07-01), Janssen et al.
patent: 3337165 (1967-08-01), Kondo
patent: 3459977 (1969-08-01), Janssen
patent: 3463950 (1969-08-01), Schadlich
patent: 4112321 (1978-09-01), Wan
patent: 4186319 (1980-01-01), Dochterman
patent: 4631433 (1986-12-01), Stokes
patent: 4665332 (1987-05-01), Meir
patent: 4801833 (1989-01-01), Dye
patent: 4823032 (1989-04-01), Ward et al.
patent: 4845396 (1989-07-01), Huber
patent: 4931681 (1990-06-01), Spaggiari
patent: 5049770 (1991-09-01), Gaeth et al.
patent: 5113104 (1992-05-01), Blaettner et al.
patent: 5126607 (1992-06-01), Merriman, Jr.
patent: 5204567 (1993-04-01), Kinoshita et al.
patent: 5235227 (1993-08-01), Fazekas
patent: 5237231 (1993-08-01), Blaettner et al.
patent: 5358341 (1994-10-01), Blaettner et al.
patent: 5373208 (1994-12-01), Ichimura et al.
patent: 5414317 (1995-05-01), Reid et al.
patent: 5444314 (1995-08-01), Okada
patent: 5453646 (1995-09-01), Gleixner et al.
patent: 5497039 (1996-03-01), Blaettner et al.
Horski Marek
Periyathamby Haran K.
LaBalle Clayton
Siemens Canada Limited
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