| 摘要 |
PURPOSE: A deflection yoke is provided to achieve an in-advance prevention against defective products by preventing the electromagnetic interference shielding bobbin coupled to the coil separator from being moved. CONSTITUTION: A deflection yoke comprises a coil separator including a screen part coupled to the screen surface of a CRT and arranged at the outer periphery of the coil separator, a rear cover and a neck part extended from the central surface of the rear cover and coupled to an electron gun part of the CRT; a horizontal deflection coil and a vertical deflection coil arranged at the inner periphery and outer periphery of the coil separator, respectively, and which generate a horizontal deflection magnetic field and a vertical deflection magnetic field, respectively; an electromagnetic interference shielding bobbin(100) arranged to be upright at the inner surface of the screen part of the coil separator, and which is wound with a coil(110) for shielding electromagnetic interference; and a movement prevention unit arranged at the screen part of the coil separator so as to prevent the electromagnetic interference shielding bobbin from being moved. The movement prevention unit includes a rail(200) arranged at the inner surface of the screen part of the coil separator, and which has a groove(210) for insertion of the bobbin; and a supporting rib(300) arranged to be upright onto the screen part of the coil separator adjacent to the rail, and which supports the inner surface of the bobbin.
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