An electromagnetic induction device comprises a closed magnetic circuit, without air gap, of which at least one first part is substantially rectilinear and surrounded by a sleeve, the sleeve being surrounded by an electrical conductor which comprises at least one metal sheet electrically insulated on at least one of its faces, wherein at least the first part of the magnetic circuit has a section of circular form.

The invention comprises a method, including the steps of: providing an inductor core and longitudinally joining a first electrical turn section to a second electrical turn section to form at least part of an electrical turn of a winding about the inductor core and optionally including at least one of the steps of: (1) additive manufacturing, casting, stamping from metal stock, cutting material, and/or bending metal to form the first electrical turn section and/or (2) welding and/or mechanically joining the first electrical turn section to the second electrical turn section.

The invention comprises a method of: providing an inductor core, placing a winding guide within an inch of the inductor core, positioning a first turn element with the winding guide, positioning a second turn element with the winding guide, and mechanically coupling the first turn element to the second turn element to form at least a part of a winding, the winding forming a wrapped shape about the inductor core. Optionally and preferably, turn elements are subsequently joined, mechanically coupled, and/or welded together to form sections of the winding.

The invention comprises a method of: providing an inductor core, placing a winding guide within an inch of the inductor core, positioning a first turn element with the winding guide, positioning a second turn element with the winding guide, and mechanically coupling the first turn element to the second turn element to form at least a part of a winding, the winding forming a wrapped shape about the inductor core. Optionally and preferably, turn elements are subsequently joined, mechanically coupled, and/or welded together to form sections of the winding.

A toroidal inductor includes a toroidal core and at least one coil is disclosed. Each coil comprises at least one first winding portion, and at least one second winding portion. At least one first winding portion comprises at least one alpha electrical pathway which extends between a first alpha pathway end to a second alpha pathway end. At least one second winding portion comprises at least one beta electrical pathway which extends between a first beta pathway end to a second beta pathway end (30B). The first and second winding portions are electrically connected to form at least one coil wound around the toroidal core. Each coil is comprised of a plurality of pathway units, and each pathway unit comprises an alpha electrical pathway connected to a beta electrical pathway.

A toroidal inductor includes a toroidal core and at least one coil is disclosed. Each coil comprises at least one first winding portion, and at least one second winding portion. At least one first winding portion comprises at least one alpha electrical pathway which extends between a first alpha pathway end to a second alpha pathway end. At least one second winding portion comprises at least one beta electrical pathway which extends between a first beta pathway end to a second beta pathway end (30B). The first and second winding portions are electrically connected to form at least one coil wound around the toroidal core. Each coil is comprised of a plurality of pathway units, and each pathway unit comprises an alpha electrical pathway connected to a beta electrical pathway.

The invention relates to a device and a method for winding toroidal cores, which can be guided in a toroidal core retaining element, with a wire comprising multiple wire sections without using a magazine. The device additionally comprises: a substantially circular needle roller which is arranged on a winding plane substantially parallel to the wire, is rotatably mounted, and can be positioned relative to the toroidal core retaining element such that the needle roller winds a wire section located on the winding plane through and about a toroidal core which is guided in the toroidal core retaining element during operation. The needle roller additionally comprises a deflecting roller, which is rotatably mounted on the needle roller in a first recess on the winding plane and which is designed to wind the wire section located on the winding plane through and about the toroidal core during operation, and a baffle plate, which is arranged on the needle roller in a second recess on the winding plane adjacently to the first recess and which is designed to guide the wire to be wound between the winding plane and a storing plane arranged substantially parallel to the winding plane via a guide groove during operation. The device additionally comprises multiple storing elements which are arranged on the storing plane, which are mounted in a stationary and rotatable manner, and which are designed to store wire sections located on the storing plane.

The invention relates to a device and a method for winding toroidal cores, which can be guided in a toroidal core retaining element, with a wire comprising multiple wire sections without using a magazine. The device additionally comprises: a substantially circular needle roller which is arranged on a winding plane substantially parallel to the wire, is rotatably mounted, and can be positioned relative to the toroidal core retaining element such that the needle roller winds a wire section located on the winding plane through and about a toroidal core which is guided in the toroidal core retaining element during operation. The needle roller additionally comprises a deflecting roller, which is rotatably mounted on the needle roller in a first recess on the winding plane and which is designed to wind the wire section located on the winding plane through and about the toroidal core during operation, and a baffle plate, which is arranged on the needle roller in a second recess on the winding plane adjacently to the first recess and which is designed to guide the wire to be wound between the winding plane and a storing plane arranged substantially parallel to the winding plane via a guide groove during operation. The device additionally comprises multiple storing elements which are arranged on the storing plane, which are mounted in a stationary and rotatable manner, and which are designed to store wire sections located on the storing plane.

The invention relates to a device and a method for winding toroidal cores arranged on a toroidal core plane with a wire arranged on a winding plane. The device additionally comprises: a protective cover which is arranged substantially on the toroidal core plane and perpendicularly to the winding plane, is movably mounted in a translational manner horizontally on the toroidal core plane, and is designed to be guided over some regions of the toroidal core during operation, and thereby protect the toroidal core, and to produce an inner mold for at least one wire winding, said wire being wound on the mold. The device additionally comprises: a slide which is arranged substantially on the toroidal core plane and parallel to the protective cover and which is slidably mounted about the protective cover, surrounds some regions of the protective cover, and is designed to push the at least one wire winding wound on the protective cover from the protective cover onto the toroidal core during operation by means of a translational movement.

The invention relates to a device and a method for winding toroidal cores arranged on a toroidal core plane with a wire arranged on a winding plane. The device additionally comprises: a protective cover which is arranged substantially on the toroidal core plane and perpendicularly to the winding plane, is movably mounted in a translational manner horizontally on the toroidal core plane, and is designed to be guided over some regions of the toroidal core during operation, and thereby protect the toroidal core, and to produce an inner mold for at least one wire winding, said wire being wound on the mold. The device additionally comprises: a slide which is arranged substantially on the toroidal core plane and parallel to the protective cover and which is slidably mounted about the protective cover, surrounds some regions of the protective cover, and is designed to push the at least one wire winding wound on the protective cover from the protective cover onto the toroidal core during operation by means of a translational movement.