Electron tube grounding device of image display unit

Details Electron tube grounding device of image display unit Electron tube grounding device of image display unit

1997-05-02

1999-08-03

Patel, Vip

Electric lamp and discharge devices

With electrical shield or static charge distribution means

439 92, 439 95, 174 51, H01F 1300

Patent

active

059329548

ABSTRACT:
In an electron tube grounding device, an image display unit includes an earth plate for grounding an electron tube, and a degauss coil for magnetic erasing, which is improved to prevent the deformation of the earth plate for grounding a chassis frame which shields the electron tube and its periphery. The damage of the degauss coil can be caused by the assembling of the electron tube and the chassis frame. The electron tube grounding device includes an electrontube, a chassis frame for surrounding the electron tube, and an earth plate for grounding the chassis frame and the electron tube. The chassis frame includes a penetration aperture formed on one side thereof, and a rail means protrudently formed on the back portion of and outside the penetration aperture where the earth plate is inserted to be fixed. The earth plate includes a fixed end portion fixed at one side of the chassis frame, an intermediate portion with elastic force which makes it contact with a band of the electron tube in case of assembling, and a free end portion inserted into the rail means after coming out of the chassis frame through the penetration aperture.

REFERENCES:
patent: 3992897 (1976-11-01), Loos
patent: 4916358 (1990-04-01), Bunton
patent: 5382868 (1995-01-01), Fukaishi
patent: 5532428 (1996-07-01), Radloff et al.

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