Title:
DISC-SHAPED STATOR OF AC MOTOR AND METHOD OF PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/1986/003351
Kind Code:
A1
Abstract:
A stator (18) having a permanent magnet-type rotor (16) mounted on a rotary shaft (12) and conductor coils (24) for excitation arranged in an opposing manner in the axial direction, for use in a brushless AC motor, and a method of manufacturing the stator. A disc-shaped stator (18) for an AC motor is manufactured as follows. The surface of an insulating substrate (26) is treated with a catalyst (28), a photosensitive film (30) is stuck thereon, the photosensitive film (30) being subjected to the photoetching so that the portion of the surface of the substrate (26) treated with the catalyst, which makes a portion of a coil pattern, is exposed, and a coil (24) for excitation is formed on the exposed surface of the substrate in the form of a flat layer by the non-electrolyte plating. On the thus formed layer of flat coil are laminated a plurality of flat coil layers, each layer for each of the electric phases and constructed by a cycle of processes consisting of the above-mentioned treatment with catalyst, application of photosensitive film, photoetching, and non-electrolyte plating. Further,the flat coil layers among the electric phases are connected by plating.
Inventors:
OYAMA SHIGEAKI (JP)
Application Number:
PCT/JP1985/000662
Publication Date:
June 05, 1986
Filing Date:
November 29, 1985
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
H01F5/00; H02K3/26; H02K15/04; (IPC1-7): H02K3/26; H02K15/04
Foreign References:
| JPS51101514U | 1976-08-14 | |||
| JPS4028729B1 | ||||
| JPS569842U | 1981-01-28 | |||
| JPS58215941A | 1983-12-15 | |||
| JPS5678342A | 1981-06-27 |
Other References:
See also references of EP 0203204A4
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