Patent ID: 11909286
Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A coil arrangement comprising:
a coil formed by an electrical coil conductor, wherein the coil is configured to be arranged at an electrically conductive component of an electric machine; and
an insulating arrangement configured to electrically insulate at least one turn of the electrical coil conductor of the coil from an electrically conductive element of the electric machine,
wherein the insulating arrangement comprises a first, electrically conductive layer configured to be arranged between the turn to be insulated of the coil and the electrically conductive element, the first, electrically conductive layer being electrically connectable to the electrically conductive component,
wherein the electrically conductive element is a laminated core of a stator or of a rotor of the electric machine on which the coil is configured to be arranged,
wherein the insulating arrangement is a slot insulation,
wherein the slot insulation is positioned between the coil and the electrically conductive element,
wherein the slot insulation comprises the first, electrically conductive layer and a second, electrically insulating layer,
wherein the first, electrically conductive layer is a conductive surface that is applied to the second, electrically insulating layer,
wherein, as viewed in an axial direction of the electric machine, the second, electrically insulating layer is dimensioned in such a way that the second, electrically insulating layer protrudes beyond axial ends of the electrically conductive element, and
wherein the first, electrically conductive layer is dimensioned in such a way that the first, electrically conductive layer does not protrude beyond the axial ends of the electrically conductive element.