Electrical multi-pole machine

Electrical generator or motor structure – Dynamoelectric – Rotary

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Details

310154, 310181, 310258, H02K 112, H02K 2126, H02K 100

Patent

active

050102680

ABSTRACT:
An electrical multi-pole machine comprises a stator (1) having a soft-magnetic outer body (7) with permanent magnets comprising pole faces (9A-9D, 10A-10D, 11A-11D) arranged along a circular path, a rotor (3) which is coaxial with the stator and which comprises a soft-magnetic inner body (13) with teeth (15-22) comprising regularly spaced tooth surfaces (15A-22A) disposed along a circular path and which cooperate with the pole faces via an air gap (23), at least three active coils (29, 30, 31), and a machine shaft (5). The pole faces are arranged in groups, at least three groups (9, 10, 11) of magnets being provided, which groups are spaced from each other by coil slots (25, 26, 27) in which coil sides (29A, B, 30A, B, 31A, B) of the active coils are accommodated. Adjacent pole faces in each of said groups have opposite polarities. The center-to-center distance between two successive tooth faces, measured along the circumferential circle of the rotor, is approximately twice as large as the center to center distance, measured along the same circle, between two adjacent pole faces in each of said groups.

REFERENCES:
patent: 3984711 (1976-10-01), Kordik
patent: 3999107 (1976-12-01), Reuting
patent: 4011479 (1977-03-01), Volkrodt
patent: 4563602 (1986-01-01), Nagasaka
patent: 4728830 (1988-05-01), Gamble
patent: 4745312 (1988-05-01), Nagasaka

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