A coil support (28) is configured to include a coil support body part (281) that is made of resin and that has abutment surfaces (281c, 281d) to be in respective direct abutments with radial inner surfaces of adjoining field windings (24) and an insertion hole (281a) that is formed along a radial direction of a rotary shaft (21), a bolt (282) with a hexagonal hole that has a base end part fixed to a rotor yoke (22) and a tip end part projecting outward in a radial direction and that is inserted into the insertion hole (281a) of the coil support body part (281), and a disc spring (283) that is interposed between the rotor yoke (22) and the coil support body part (281) and that presses the coil support body part (281) toward the field windings (24), and to have a spot-faced part (281b) that is formed on a radial outside of the insertion hole (281a) to have a larger diameter than the insertion hole (281a).

A method for manufacturing a rotor for an electric machine with a contactless power transmission system, wherein an end winding cover is arranged on one end face of a laminated core of the rotor. The invention provides that a secondary unit (SEC) of the power transmission system is integrated in the end winding cover and, as a result, after the end winding cover has been arranged, the secondary unit (SEC) is held on the rotor indirectly via the end winding cover.

A variable frequency generator (VFG) rotor can include a plurality of windings configured to form a plurality of magnetic poles, each winding comprising a first winding end and a second winding end, and a first winding support structure comprising a plurality of first winding support segments configured to retain a first portion of each winding, each winding support segment being configured to move radially relative to an axis of rotation of the rotor. The first winding end of each winding extends from each winding support segment. The rotor can include at least one flexible bus bar jumper connected to two first winding ends of adjacent windings and configured to flex with radial movement of the winding support segments of respective windings attached to the flexible bus bar jumper.

A rotor, in particular of an electrical machine, has a base body and at least one metallic end plate which is mounted on the base body. The base body and the at least one end plate have a continuous layer which is injection molded.

A rotor for an electrical machine, comprising: a rotor stack with a plurality of pole teeth and windings around the pole teeth, a plurality of groove wedges, which are arranged radially above the windings, in grooves between the pole teeth, characterised in that a support element is arranged in the grooves between the windings and radially between the groove wedges and the rotor stack.

An end winding support of a rotor of an electric machine is provided. The end winding support includes a first part and a second part. The first part includes an elongate body about which a conductive winding is wound. The elongate body has a surface defining a first groove. The second part is attached to the first part. The second part includes a body which extends outwardly from the elongate body and which has a surface defining a second groove corresponding to the first groove.

Provided is a rotor including a rotor core, a plurality of teeth disposed at an outer side of the rotor core, and an insulator configured to surround the teeth wherein the teeth are detachably coupled to the rotor core, the insulator includes a body configured to surround the teeth, and a blade configured to protrude from at least one of an upper surface and a lower surface of the body, and thereby the number of manufacturing components is reduced and manufacturing costs and the number of manufacturing processes are reduced.

A rotary electric machine including a rotor having salient poles, each salient pole comprising a pole body surrounded by at least one coil, and at least one pair of wedges comprising a first wedge positioned against the coil of a first salient pole and a second wedge positioned against the coil of a second salient pole consecutive with the first. The first and second wedges are able to move in the inter-pole space with respect to one another along the longitudinal axis of the rotor, and each having at least one contact surface, the contact surface or surfaces of the first wedge being configured to come into contact with the contact surface or surfaces of the second wedge as one wedge is moved longitudinally with respect to the other in such a way that the movement of one wedge with respect to the other induces a pressing of these wedges against the coils so as to hold the coils of the first and second salient poles respectively against the pole bodies of the first and second salient poles.

A rotor includes a first rotor core and a second rotor core that are axially stacked; the first rotor core includes a first core body and a first teeth protruding from an outer circumferential surface of the first core body; the second rotor core includes a second core body and a second teeth protruding from an outer circumferential surface of the second core body; wherein each of the first teeth includes a first extension protruding axially in a first direction past a first surface of the first core body, and each of the second teeth includes a second extension protruding axially in a second direction opposite the first direction past a first surface of the second core body, wherein the first extension includes a first protrusion provided on a first inner circumferential surface of the first extension, wherein the second extension includes a second protrusion provided on a second inner circumferential surface of the second extension, wherein the first protrusion includes a third inner circumferential surface of the first protrusion, wherein the second protrusion includes a fourth inner circumferential surface of the second protrusion, the third inner circumferential surface of the first protrusion, spaced apart radially inward from the second inner circumferential surface of the second extension, the fourth inner circumferential surface of the second protrusion, spaced apart radially inward from the first inner circumferential surface of the first extension.

The present invention provides a busbar comprising terminals, a body connected to the terminals and includes a plurality of blades, wherein the body includes an inner body, an outer body, and connecting parts, the outer body is disposed outside the inner body, the connecting parts are arranged in a periphery of the inner body at regular intervals and connect the inner body to the outer body, the terminals are disposed in the inner body so that connection ends of the terminals are disposed between the adjacent connecting parts, the plurality of blades protrude from an upper surface of the outer body and are arranged in a circumferential direction with respect to a center of the busbar, the outer body includes a cooling hole formed to pass through from a lower surface thereof to the upper surface, and the cooling hole is disposed between adjacent blades, thereby providing an advantageous effect of reducing the number of parts to be manufactured such that manufacturing costs and manufacturing processes can be reduced.