초록 ▼

A toroidal electrical transformer having a low voltage coil, a high voltage coil and an annular magnetic core is disclosed. The preferred low voltage and high voltage coils are each continuous and form an arcuate elongated passage therethrough. The preferred annular magnetic core is wound in place i

A toroidal electrical transformer having a low voltage coil, a high voltage coil and an annular magnetic core is disclosed. The preferred low voltage and high voltage coils are each continuous and form an arcuate elongated passage therethrough. The preferred annular magnetic core is wound in place in said arcuate elongated passage substantially from a continuous strip of magnetic material resulting in a toroidal transformer with cotinuous windings and a continuous wound core. Various components and sub-assemblies are also disclosed along with various apparatus and methods for producing such toroidal electrical transformers, its components and its sub-assemblies.

대표청구항 ▼

An apparatus for winding wire into pieshaped coil bundles, said apparatus comprising: a winding mandrel providing a bottom wall and two side walls defining an annular cavity for containing multiple turns of the wire with each turn having an inside leg, an outside leg, a converging yoke and a divergi

An apparatus for winding wire into pieshaped coil bundles, said apparatus comprising: a winding mandrel providing a bottom wall and two side walls defining an annular cavity for containing multiple turns of the wire with each turn having an inside leg, an outside leg, a converging yoke and a diverging yoke corresponding to an inside leg portion, an outside leg portion, a converging yoke portion and a diverging yoke portion of said annular cavity, said side walls converging toward a narrow opening to said annular cavity at said inside leg portion of said annular cavity so as to provide an undercut cavity portion; guide means for axially positioning the wire during relative rotation of said guide means and said winding mandrel to wind the wire into said annular cavity, said guide means including a positioning portion located outside said annular cavity cooperating with the wire for placing the wire at predetermined axial positions laterally of said narrow opening within said undercut portion of said annular cavity; and adjusting means for adjusting the axial location of said positioning portion of said guide means during winding of a turn so that said inside leg and said outside leg of said turn being wound are caused to substantially lie in a predetermined plane, said adjusting means adjusting the axial location of said positioning portion of said guide means for at least the winding of a portion of said turn generally in accordance with said predetermined plane to adjust said predetermined axial positions of the wire within said undercut portion of said annular cavity.