Planar linear pulse motor

Details Planar linear pulse motor Planar linear pulse motor

1986-12-01

1989-08-22

Salce, Patrick R.

Electric power conversion systems

Cascaded or combined, diverse conversions in which the...

Combined phase and frequency conversion

318135, H02K 4100

Patent

active

048601837

ABSTRACT:
In this planar linear pulse motor, first and second assemblies are mutually movable along an axial line. The first assembly includes a group of teeth which are arranged at a determinate pitch in a row along a line parallel to this axial line, each of these teeth being elongated in a direction perpendicular to the axial line. The second assembly includes four groups of teeth, each such group being arranged at the same determinate pitch also in a row along a line parallel to the axial line, with the phases of the four groups of teeth being offset from one another, and with each of these teeth also being elongated in a direction perpendicular to the axial line. The four groups of teeth of this second assembly each confront the group of teeth of the first assembly in parallel and are separated from those teeth by a relatively small gap. One of a pair of magnetic core members is contiguous to one side surface of a permanent magnet which has opposite magnetic poles on its side surfaces on either side of its central longitudinal line, and the other of this pair of magnetic core members is contiguous to the other magnetic pole side surface of this permanent magnet. Each of these magnetic core members has two pole surfaces contiguous to two of the four groups of teeth of this second assembly. For each of the magnetic core members, there is provided a coil for inducing magnetic flux in it.

REFERENCES:
patent: 4504750 (1985-03-01), Onodera
patent: 4578622 (1986-03-01), Nakagawa
patent: 4709175 (1987-11-01), Nakagawa
IBM Tech. Disclosure Bulletin, Thompson, "Linear Incremental Motor", 2/64, pp. 19-20, vol. 6, No. 9.
Patent Abstracts of Japan, vol. 9, No. 270 (E-353), & JP-A-60 113 652 (Shinko Denki), 6/20/85.
Patent Abstracts of Japan, vol. 10, No. 104 (E-397), & JP-A-60 241 767 (Shinko Denki), 11/30/85.

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