Deflection yoke

Details Deflection yoke Deflection yoke

1992-01-24

1993-04-20

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

313440, H01F 700, H01J 2970

Patent

active

052046494

ABSTRACT:
A deflection yoke mounted on a television picture tube comprising:
a horizontal deflection coil, a vertical deflection coil, a core disposed outside the horizontal deflection coil, and a separator extending completely between the horizontal deflection coil and the vertical deflection coil for isolating the horizontal deflection coil from the vertical deflection coil, the separator being entirely comprised of a mixture of plastics and granular ceramics having a high thermal conductivity wherein a resinous material having a high thermal conductivity is filled in spaces between the picture tube and the horizontal deflection coil, the horizontal deflection coil and the separator, the separator and the vertical deflection coil, and the core and the vertical deflection coil so as to bond and fix the deflection yoke to the tube and form a heat transmission passage in the spaces, whereby heat produced in said horizontal and vertical deflection coils is reduced even when they are scanned with a large current of a high frequency.

REFERENCES:
patent: 3612742 (1971-10-01), Snowden
patent: 4038491 (1977-07-01), Gamble et al.
patent: 4494097 (1985-01-01), Lenders
patent: 4624884 (1986-11-01), Harada et al.
patent: 4673906 (1987-06-01), Petrow
patent: 4737752 (1988-04-01), Kriz
patent: 4749975 (1988-06-01), Tokita
Patent Abstracts of Japan, vol. 12, No. 355 (E-661) (3202) Sep. 22, 1988 & JP-A-63 110 534 (Toshiba Corp.) May 16, 1988.

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