Inductor devices – Core forms casing
Patent
1980-11-13
1982-03-23
Kozma, Thomas J.
Inductor devices
Core forms casing
336120, H01F 1502
Patent
active
043215726
ABSTRACT:
A transformer (20) for coupling AC electrical energy from a stationary element (22) to a rotating element (24) without the use of sliding contacts. The transformer (20) is of the rotary type and includes a ferrite core (39) and two primary windings (70 and 72) which are stationary with respect to a secondary winding (88) which rotates within an annular cavity (48) adjacent an axial bore (58) in the core. The core (39) is comprised of two cup type core halves (40 and 42). Electrical connection to the secondary winding (88) is made through a split bobbin assembly (89) which couples to a coaxial shaft assembly (59) located in the axial bore (58). The electrical coupling to the coaxial shaft assembly is made through a continuous transverse channel (68) connecting the axial bore (58) with the annular cavity (48). The transverse channel (68) forms a single air gap; however, it is not open directly to free space but is shielded by the magnetic permeable material of the core halves (40 and 42).
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Paulkovich John
Studer Philip A.
Kozma Thomas J.
Manning John R.
Sandler Ronald F.
The United States of America as represented by the Administrator
Tresansky John O.
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