Deflection yoke apparatus

Details Deflection yoke apparatus Deflection yoke apparatus

1992-01-30

1993-03-02

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

358248, H01H 100, H01H 500, H04N 5645

Patent

active

051913070

ABSTRACT:
A coil case with a coil receptacle for receiving a coil winding is formed integrally with cover flaps which are swingably joined to either end of the coil receptacle by hinge portions. The coil case has mounting pawls formed thereon. The coil winding is received inside the coil case and the cover flaps are closed, whereby a leakage magnetic field cancellation coil is assembled. The cancellation coil is mounted onto the deflection yoke by engaging the mounting pawls with a part of the deflection yoke. Since the coil case and the cover flaps are formed integrally with each other, the number of component parts is reduced, thereby facilitating manufacture. Further, the size of the cancellation coil is reduced, thereby reducing the material costs, hence, the production costs of the apparatus. Since the cancellation coil can be mounted onto the deflection yoke by a single-step operation utilizing the mounting pawls, the efficiency of the mounting operation is improved.

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