Pancake motor with insitu wound bobbinless stator coils

Details Pancake motor with insitu wound bobbinless stator coils Pancake motor with insitu wound bobbinless stator coils

1984-05-21

1986-03-18

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310214, 310268, H02K 300

Patent

active

045771308

ABSTRACT:
The stator of a pancake motor comprises porcelianized steel with stator coils secured thereto by means of raised tabs which "entrap" a few turns of the coil between the tab and the surface of the stator. Thermoplastic insulation on the wire, when heated, rigidly bonds the coil turns together thereby gripping the tabs and securing the coils to the stator surface. Coil connections are provided by printed wire patterns on the stator surface. Since the stator coils may be wound insitu, bobbins, fasteners and printed wiring boards are eliminated, assembly steps are reduced, and both convective and conductive heat dissipation are improved thereby reducing the motor cost, improving its reliability and allowing the motor to run cooler or to provide more power output for a given temperature increase.

REFERENCES:
patent: 3549926 (1970-12-01), Pentland
patent: 4135120 (1979-01-01), Hoshimi et al.
patent: 4203048 (1980-05-01), Sato
patent: 4220879 (1980-09-01), Hoshimi et al.
patent: 4292557 (1981-09-01), Kishi
patent: 4336475 (1982-06-01), Morinaga et al.
patent: 4429240 (1984-01-01), Kishi
patent: 4455516 (1984-06-01), Furusho
"Application of Porcelain Steel Substrate Thick Film Circuits in Japan" N. Suzuki, K. Yajima, S. Murayama, M. Itah, abstract of paper to be presented at meeting of International Society for Hybrid Microelectronics, ISHM '84, Dallas, Texas.

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