Back to results
US 6,822,381 B2Granted
Magnetic material filling for void spaces in deflection yokes
AssigneeKoninklijike Philips Electronics N.V.
InventorsDirk Willem Harberts, Hendrik Dirk Van Den Berg
Life of this patent
Estimating the term…
Abstract
The invention relates to a deflection yoke (10) for a cathode ray tube (14) in which the energy for deflection is reduced. This is done by providing a magnetic material (56) in voids (52,54) that occur between the ferrite core (10) and a set of frame coils (18). The magnetic material (56) is comprised in a preformed insert (90), which may further comprise a rubber or plastic material. This results in a clean method of adding the magnetic material.
Claims5
A method of manufacturing a deflection yoke, comprising:
- surrounding a set of line deflection coils with a set of field deflection coils comprising wire strands having first void spaces between the wire strands;
- surrounding the set of field deflection coil with a ferrite core such that second void spaces are present between the set of field deflection coils and the ferrite core;
- and
- filling at least one of the first and second void spaces with at least one preformed insert comprising magnetic particles.
1 more element
Dependencies are inferred from the claim text.