A rotary machine coil includes: a coil conductor; and an insulation layer including a mica tape which is wrapped around an outer periphery of the coil conductor and in which a mica layer and a film layer are laminated in this order from the coil conductor side, and a cured material of a thermosetting resin composition with which the mica layer is impregnated. The permittivity in an insulation layer (first mica layer) on the inner-layer side is higher than the permittivity in an insulation layer (second mica layer) on the outer-layer side, thus reducing the electric field intensity applied in the insulation layer.

A rotary machine coil includes: a coil conductor; and an insulation layer including a mica tape which is wrapped around an outer periphery of the coil conductor and in which a mica layer and a film layer are laminated in this order from the coil conductor side, and a cured material of a thermosetting resin composition with which the mica layer is impregnated. The permittivity in an insulation layer (first mica layer) on the inner-layer side is higher than the permittivity in an insulation layer (second mica layer) on the outer-layer side, thus reducing the electric field intensity applied in the insulation layer.

An insulation ring for a winding head of a hairpin winding of a stator of an electrical machine within a drivetrain of a motor vehicle includes an annular disc-shaped main body with a plurality of openings that extend axially through the main body and can each be penetrated at least in sections by the free ends of a pair of hairpin conductor rods. At least one spacer element protrudes out of the main body in a first axial direction and at least one retaining element protrudes out of the main body in a second axial direction.

An insulation ring for a winding head of a hairpin winding of a stator of an electrical machine within a drivetrain of a motor vehicle includes an annular disc-shaped main body with a plurality of openings that extend axially through the main body and can each be penetrated at least in sections by the free ends of a pair of hairpin conductor rods. At least one spacer element protrudes out of the main body in a first axial direction and at least one retaining element protrudes out of the main body in a second axial direction.

The disclosure relates to a method of providing a component for an electric machine having a body including multiple grooves and multiple indentations, and a cover including multiple recesses and multiple fixation elements. The method includes arranging at least one of the indentations at an edge of each of the grooves of the body, arranging at least one of the fixation elements at each of the recesses, and arranging the cover on the body with each of the recesses of the cover associated with a respective one of the grooves of the body, and each of the fixation elements of the cover arranged in a respective one of the indentations of the grooves of the body.

The disclosure relates to a wiring element, in particular for electrically contacting two mutually spaced contact elements, comprising a first wire end and a second wire end. The wiring element has an insulation between the first wire end and the second wire end, wherein the insulation is made of a flat insulation element that at least partly surrounds the wiring element and has a first edge extending in the longitudinal extension of the wiring element and a second edge extending in the longitudinal extension of the wiring element. The first edge is fixed relative to the second edge of the flat insulation element by means of a bonded connection and/or a form-fitting connection such that the wiring element is surrounded by the flat insulation element in a tubular manner.

The disclosure relates to a wiring element, in particular for electrically contacting two mutually spaced contact elements, comprising a first wire end and a second wire end. The wiring element has an insulation between the first wire end and the second wire end, wherein the insulation is made of a flat insulation element that at least partly surrounds the wiring element and has a first edge extending in the longitudinal extension of the wiring element and a second edge extending in the longitudinal extension of the wiring element. The first edge is fixed relative to the second edge of the flat insulation element by means of a bonded connection and/or a form-fitting connection such that the wiring element is surrounded by the flat insulation element in a tubular manner.