Deflection coil and fabrication method thereof
AssigneeMurata Mfg. Co., Ltd.
InventorHiroshi Ikeuchi
Life of this patent
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Abstract
A deflection coil is formed into a saddle shape by winding up a conductive wire ribbon in layers, such that the layered wire ribbon is formed in its cross-section into a parallelogram with adjoining sides crossing one another at other than 90 degrees. The deflection coil is produced by winding up in layers the wire ribbon in a plurality of coil grooves of a coil-winding frame die while the wire ribbon is delivered out from a nozzle, obliquely against the side wall face of each coil groove.
Claims15
A deflection coil preformed into a saddle shape comprising a plurality of layers of conductive wire ribbon layered atop each other and against a spacer in the bottom of a coil groove wherein, a cross-section taken along a right angle to said layered wire ribbon forms a non-rectangular parallelogram with adjoining sides intersecting one another at other than 90 degrees.
A method of producing a deflection coil formed into a saddle shape by providing a coil-winding frame die including a plurality of coil grooves into which plural layers of a wire ribbon are wound, each of said plurality of coil grooves having a pair of side wall faces and a spacer located adjacent a bottom face, said wire ribbon being delivered from a nozzle, the method comprising the steps of:
- delivering said wire ribbon from said nozzle adjacent to and aligned with said spacer such that said wire ribbon forms an oblique angle with respect to at least one of said side wall faces when said wire ribbon comes to rest;
- and
- winding said wire ribbon into said coil grooves in layers with successive layers being parallel to each other and a first layer adjacent said spacer.
A deflection coil preformed into a saddle shape comprising a plurality of conductive wire ribbons layered atop each other and against a spacer in the bottom of a groove with successively offset edges between adjacent layers so that said coil is thereby adapted for placement in a coil groove of a deflection yoke.
Dependencies are inferred from the claim text.