Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1982-09-27
1984-06-19
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, 310162, H02K 3700
Patent
active
044554990
ABSTRACT:
In a two-phase stepping motor having a rotor (1) with a disk-shaped axially magnetized permanent magnet (8) which has a plurality of poles of constant pole spacing, a first stator part (11) which bears an exciter winding (3) and has first stator poles (15) extending parallel to the face of the permanent magnet (8) and a second stator part (12) which bears an exciter winding (4) and has second stator poles (16) which extend parallel to the face of the permanent magnet (8), the two stator parts (11, 12) are arranged in a single plane, at least in the region of the stator poles (15, 16) and are connected with each other in said plane by intermediate pieces (13, 14) of small magnetic conductance. The first and second stator poles (15, 16) are each divided into two groups (17, 18; 20, 21) which are magnetically separated from each other, the one group (17, 20) being shifted by one rotor-pole spacing from the other group (18, 21 ). The two groups (17, 18) of first stator poles (15) are shifted from the two groups (20, 21) of second stator poles (16) by half a rotor-pole spacing. On that face of the permanent magnet (8) which faces away from the stator poles (15, 16) there is a return flux disk (9) for the induction fluxes coming from the exciter windings (3, 4).
REFERENCES:
patent: 3989967 (1976-11-01), Kikuyama
patent: 4048548 (1977-09-01), Nakajima
patent: 4144467 (1979-03-01), Nakajima
patent: 4206375 (1980-06-01), Sudler
patent: 4267472 (1981-05-01), Sudler et al.
patent: 4361790 (1982-11-01), Laesser et al.
Farber Martin A.
Skudy R.
VDO Adolf Schindling AG
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